US4452025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-interlocking grille
Assignee: Individual
•
Filing: 1980-11-12
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Granted: 1984-06-05
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Expires: 2000-11-12
Abstract
Abstract A plurality of metallic or plastic strips or flats or bars with a certain types of notches and holes disposed along the length of said strips or flats or bars in a regular interval, which are used together with a plurality of rods in assembling a variety of self-interlocking grilles, are disclosed.
Inventors
- 👤 Hyok S. Lew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:27
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/42; E04C2/421; E04C2/422
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
318 words
A self-interlocking grill comprising in combination: (a) a first plurality of bars having opposite edges, said plurality of bars disposed parallel to each other in first direction, each of said plurality of bars including; (1) series of notches extending inwardly from said edges in alternating fashion, each of said notches having an open and closed end with an imprint of a hole provided at the closed end thereof; and (2) a series of holes disposed along the middle of said strip at the midpoints between adjacent notches; (b) a second plurality of bars having opposite edges, said plurality of bars disposed parallel to one another in second direction, each of said plurality of bars including; (1) a series of notches extending inwardly from said edges in alternating fashion, each of said notches having an open and closed end with an imprint of a hole provided at the closed end thereof; and (2) a series of holes disposed along the middle of said strip at the midpoints between adjacent notches; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars; (c) a first plurality of rods disposed parallel to one another in said first direction, each of said first plurality of rods engaging and extending through a series of said holes included in said second plurality of bars wherein said first plurality of rods and said first plurality of bars are disposed parallel to each other in alternating fashion; (d) a second plurality of rods disposed parallel to one another in said second direction, each of said second plurality of rods engaging and extending through a series of said holes included in said first plurality of bars wherein said second plurality of rods and said second plurality of bars are disposed parallel to each other in alternating fashion.
Claim 2
Dependent Claim
318 words
A self-interlocking grill comprising in combination: (a) a first plurality of bars having opposite edges, said plurality of bars disposed parallel to each other in first direction, each of said plurality of bars including; (1) series of notches extending inwardly from said edges in alternating fashion, each of said notches having an open and closed end with an imprint of a hole provided at the closed end thereof; and (2) a series of holes disposed along the middle of said strip at the midpoints between adjacent notches; (b) a second plurality of bars having opposite edges, said plurality of bars disposed parallel to one another in second direction, each of said plurality of bars including; (1) a series of notches extending inwardly from said edges in alternating fashion, each of said notches having an open and closed end with an imprint of a hole provided at the closed end thereof; and (2) a series of holes disposed along the middle of said strip at the midpoints between adjacent notches; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars; (c) a first plurality of rods disposed parallel to one another in said first direction, each of said first plurality of rods engaging and extending through a series of said holes included in said second plurality of bars wherein said first plurality of rods and said first plurality of bars are disposed parallel to each other in alternating fashion; (d) a second plurality of rods disposed parallel to one another in said second direction, each of said second plurality of rods engaging and extending through a series of said holes included in said first plurality of bars wherein said second plurality of rods and said second plurality of bars are disposed parallel to each other in alternating fashion.
Claim 3
Dependent Claim
213 words
A self-interlocking grill comprising in combination: (a) a first plurality of bars disposed parallel to each other in first direction and a second plurality of bars disposed parallel to each other in second direction, each of said first and second plurality of bars having opposite edges and including; (1) a series of notches extending inwardly from said edges in alternating fashion, each of said notches having an open and closed end with a hole provided at the closed end thereof; and (2) a series of holes disposed along the middle of said strip at the midpoints between adjacent notches; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars; and (b) a first plurality of rods disposed parallel to said first plurality of bars in alternating fashion wherein each of said first plurality of rods engages and extends through a series of said holes included in said second plurality of bars, and a second plurality of rods disposed parallel to said second plurality of bars in alternating fashion wherein each of said second plurality of rods engages and extends through a series of said holes included in said first plurality of bars.
Claim 4
Dependent Claim
213 words
A self-interlocking grill comprising in combination: (a) a first plurality of bars disposed parallel to each other in first direction and a second plurality of bars disposed parallel to each other in second direction, each of said first and second plurality of bars having opposite edges and including; (1) a series of notches extending inwardly from said edges in alternating fashion, each of said notches having an open and closed end with a hole provided at the closed end thereof; and (2) a series of holes disposed along the middle of said strip at the midpoints between adjacent notches; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars; and (b) a first plurality of rods disposed parallel to said first plurality of bars in alternating fashion wherein each of said first plurality of rods engages and extends through a series of said holes included in said second plurality of bars, and a second plurality of rods disposed parallel to said second plurality of bars in alternating fashion wherein each of said second plurality of rods engages and extends through a series of said holes included in said first plurality of bars.
Claim 5
Dependent Claim
215 words
A self-interlocking grill comprising in combination: (a) a first plurality of bars disposed parallel to each other in first direction and a second plurality of bars disposed parallel to each other in second direction, each of said first and second plurality of bars having opposite edges and including; (1) a series of notches extending inwardly from one of said opposite edges, each of said notches having an open and closed end with an imprint of a hole provided at the closed end thereof; and (2) a series of holes disposed along the middle of said strip at the midpoints between adjacent notches; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars; and (b) a first plurality of rods disposed parallel to said first plurality of bars in alternating fashion wherein each of said first plurality of rods engages and extends through a series of said holes included in said second plurality of bars, and a second plurality of rods disposed parallel to said second plurality of bars in alternating fashion wherein each of said second plurality of rods engages and extends through a series of holes included in said first plurality of bars.
Claim 6
Dependent Claim
215 words
A self-interlocking grill comprising in combination: (a) a first plurality of bars disposed parallel to each other in first direction and a second plurality of bars disposed parallel to each other in second direction, each of said first and second plurality of bars having opposite edges and including; (1) a series of notches extending inwardly from one of said opposite edges, each of said notches having an open and closed end with an imprint of a hole provided at the closed end thereof; and (2) a series of holes disposed along the middle of said strip at the midpoints between adjacent notches; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars; and (b) a first plurality of rods disposed parallel to said first plurality of bars in alternating fashion wherein each of said first plurality of rods engages and extends through a series of said holes included in said second plurality of bars, and a second plurality of rods disposed parallel to said second plurality of bars in alternating fashion wherein each of said second plurality of rods engages and extends through a series of holes included in said first plurality of bars.
Claim 7
Dependent Claim
214 words
A self-interlocking grill comprising in combination: (a) a first plurality of bars disposed parallel to each other in first direction and a second plurality of bars disposed parallel to each other in second direction, each of said first and second plurality of bars having opposite edges and including; (1) a series of notches extending inwardly from one of said opposite edges, each of said notches having an open and closed end with a hole provided at the closed end thereof; and (2) a series of holes disposed along the middle of said strip at the middle points between adjacent notches; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars; and (b) a first plurality of rods disposed parallel to said first plurality of bars in alternating fashion wherein each of said first plurality of rods engages and extends through a series of said holes included in said second plurality of bars, and a second plurality of rods disposed parallel to said second plurality of bars in alternating fashion wherein each of said second plurality of rods engages and extends through a series of said holes included in said first plurality of bars.
Claim 8
Dependent Claim
214 words
A self-interlocking grill comprising in combination: (a) a first plurality of bars disposed parallel to each other in first direction and a second plurality of bars disposed parallel to each other in second direction, each of said first and second plurality of bars having opposite edges and including; (1) a series of notches extending inwardly from one of said opposite edges, each of said notches having an open and closed end with a hole provided at the closed end thereof; and (2) a series of holes disposed along the middle of said strip at the middle points between adjacent notches; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars; and (b) a first plurality of rods disposed parallel to said first plurality of bars in alternating fashion wherein each of said first plurality of rods engages and extends through a series of said holes included in said second plurality of bars, and a second plurality of rods disposed parallel to said second plurality of bars in alternating fashion wherein each of said second plurality of rods engages and extends through a series of said holes included in said first plurality of bars.
Claim 9
Dependent Claim
164 words
A self-interlocking grill comprising in combination: (a) a first plurality of bars disposed parallel to each other in first direction and a second plurality of bars disposed parallel to each other in second direction, each of said first and second plurality of bars having opposite edges and including a series of notches extending inwardly from said edges in alternating fashion, each of said notches having an open and closed end with a hole provided at the closed end thereof; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars providing a hole at each intersection of two crossing bars; and (b) a plurality of rods disposed parallel to each other in third direction oblique to said first and second directions wherein each of said plurality of rods engages and extends through a series of holes provided at the intersections of two crossing bars.
Claim 10
Dependent Claim
164 words
A self-interlocking grill comprising in combination: (a) a first plurality of bars disposed parallel to each other in first direction and a second plurality of bars disposed parallel to each other in second direction, each of said first and second plurality of bars having opposite edges and including a series of notches extending inwardly from said edges in alternating fashion, each of said notches having an open and closed end with a hole provided at the closed end thereof; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars providing a hole at each intersection of two crossing bars; and (b) a plurality of rods disposed parallel to each other in third direction oblique to said first and second directions wherein each of said plurality of rods engages and extends through a series of holes provided at the intersections of two crossing bars.
Claim 11
Dependent Claim
164 words
A self-interlocking grill comprising in combination: (a) a first plurality of bars disposed parallel to each other in first direction and a second plurality of bars disposed parallel to each other in second direction, each of said first and second plurality of bars having opposite edges and including a series of notches extending inwardly from one of said opposite edges, each of said notches having an open and closed end with a hole provided at the closed end thereof; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars providing a hole at each intersection of two crossing bars; and (b) a plurality of rods disposed parallel to each other in third direction oblique to said first and second directions wherein each of said plurality of rods engages and extends through a series of holes provided at the intersections of two crossing bars.
Claim 12
Dependent Claim
164 words
A self-interlocking grill comprising in combination: (a) a first plurality of bars disposed parallel to each other in first direction and a second plurality of bars disposed parallel to each other in second direction, each of said first and second plurality of bars having opposite edges and including a series of notches extending inwardly from one of said opposite edges, each of said notches having an open and closed end with a hole provided at the closed end thereof; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars providing a hole at each intersection of two crossing bars; and (b) a plurality of rods disposed parallel to each other in third direction oblique to said first and second directions wherein each of said plurality of rods engages and extends through a series of holes provided at the intersections of two crossing bars.
Claim 13
Dependent Claim
213 words
A self-interlocking grille comprising in combination: (a) a first plurality of bars disposed parallel to each other in first direction and a second plurality of bars disposed parallel to each other in second direction, each of said first and second plurality of bars having opposite edges and including a series of notches extending inwardly from said edges in alternating fashion, each of said notches having an open and closed end with a hole provided at the closed end thereof; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars providing a hole at each intersection of two crossing bars; and (b) a first plurality of rods disposed parallel to each other in third direction oblique to said first and second directions wherein each of said first plurality of rods engages and extends through an alternative series of holes provided at the intersections of two crossing bars; and (c) a second plurality of rods disposed parallel to each other in fourth direction substantially perpendicular to said third direction wherein each of said second plurality of rods engages and extends through another alternative series of holes provided at the intersections of two crossing bars.
Claim 14
Dependent Claim
213 words
A self-interlocking grille comprising in combination: (a) a first plurality of bars disposed parallel to each other in first direction and a second plurality of bars disposed parallel to each other in second direction, each of said first and second plurality of bars having opposite edges and including a series of notches extending inwardly from said edges in alternating fashion, each of said notches having an open and closed end with a hole provided at the closed end thereof; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars providing a hole at each intersection of two crossing bars; and (b) a first plurality of rods disposed parallel to each other in third direction oblique to said first and second directions wherein each of said first plurality of rods engages and extends through an alternative series of holes provided at the intersections of two crossing bars; and (c) a second plurality of rods disposed parallel to each other in fourth direction substantially perpendicular to said third direction wherein each of said second plurality of rods engages and extends through another alternative series of holes provided at the intersections of two crossing bars.
Claim 15
Dependent Claim
213 words
A self-interlocking grille comprising in combination: (a) a first plurality of bars disposed parallel to each other in first direction and a second plurality of bars disposed parallel to each other in second direction, each of said first and second plurality of bars having opposite edges and including a series of notches extending inwardly from one of said opposite edges, each of said notches having an open and closed end with a hole provided at the closed end thereof; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars providing a hole at each intersection of two crossing bars; and (b) a first plurality of rods disposed parallel to each other in third direction oblique to said first and second directions wherein each of said first plurality of rods engages and extends through an alternative series of holes provided at the intersections of two crossing bars; and (c) a second plurality of rods disposed parallel to each other in fourth direction substantially perpendicular to said third direction wherein each of said second plurality of rods engages and extends through another alternative series of holes provided at the intersections of two crossing bars.
Claim 16
Dependent Claim
213 words
A self-interlocking grille comprising in combination: (a) a first plurality of bars disposed parallel to each other in first direction and a second plurality of bars disposed parallel to each other in second direction, each of said first and second plurality of bars having opposite edges and including a series of notches extending inwardly from one of said opposite edges, each of said notches having an open and closed end with a hole provided at the closed end thereof; wherein said first and second plurality of bars cross each other and said notches included in said first plurality of bars engage said notches included in said second plurality of bars providing a hole at each intersection of two crossing bars; and (b) a first plurality of rods disposed parallel to each other in third direction oblique to said first and second directions wherein each of said first plurality of rods engages and extends through an alternative series of holes provided at the intersections of two crossing bars; and (c) a second plurality of rods disposed parallel to each other in fourth direction substantially perpendicular to said third direction wherein each of said second plurality of rods engages and extends through another alternative series of holes provided at the intersections of two crossing bars.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |