Patent US3755943A successfully refreshed from Google Patents.
US3755943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic sign symbol
Assignee: Individual
•
Filing: 1970-11-06
•
Granted: 1973-09-04
•
Expires: 1990-11-06
Abstract
Abstract A plastic sign symbol composed of an open channel-defining carrier and an outer translucent cover member sized to cover the channel, the said members being formed by molding thermoplastic material in sheet form and said symbol including means to interconnect the members. Electrical means may be supported within the carrier, which is opaque and of non-conductive, flame resistant thermoplastic material, to illuminate the symbol.
Inventors
- 👤 J Cesarotti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:57
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/04; G09F13/0404
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
174 words
An illuminated sign defining a letter symbol or the like, including in combination: a three-dimensional carrier channel member including a transverse web and side flanges, a three-dimensional cover member cOrrespondingly including a web and side flanges complimentary to those of said carrier member for forming a hollow sign therewith, said side flanges of the respective member including matingly engaged flange-edge portions forming a medial, circumscribing seam between said members, said members comprising a molded, thermoplastic, the carrier member being essentially a flame resistant non-conductor of an electrical current and substantially opaque, said cover member being substantially translucent; electrical illuminating means mounted on the web of said cover member and including electrical conductor leads insulated from said web and accessible at the outer surface of said web; fastening means extending through said carrier member web and projecting therefrom for mounting said sign in an erect position; and an electrical, current conducting shield overlying said web and substantially surrounding electrical-conductor leads and said fastening means for grounding the sign and preventing electrical arcing at said terminals.
Claim 2
Dependent Claim
174 words
An illuminated sign defining a letter symbol or the like, including in combination: a three-dimensional carrier channel member including a transverse web and side flanges, a three-dimensional cover member cOrrespondingly including a web and side flanges complimentary to those of said carrier member for forming a hollow sign therewith, said side flanges of the respective member including matingly engaged flange-edge portions forming a medial, circumscribing seam between said members, said members comprising a molded, thermoplastic, the carrier member being essentially a flame resistant non-conductor of an electrical current and substantially opaque, said cover member being substantially translucent; electrical illuminating means mounted on the web of said cover member and including electrical conductor leads insulated from said web and accessible at the outer surface of said web; fastening means extending through said carrier member web and projecting therefrom for mounting said sign in an erect position; and an electrical, current conducting shield overlying said web and substantially surrounding electrical-conductor leads and said fastening means for grounding the sign and preventing electrical arcing at said terminals.
Claim 3
Dependent Claim
51 words
The structure as claimed in claim 1 in which said illuminating means comprises an elongated tube having an illuminable gas sealed therein, said tube being shaped to correspond to the shape of the hollow and in a plane generally coinciding with said seam and intermediately of said matingly engaged flange edges.
Claim 4
Dependent Claim
45 words
The structure as claimed in claim 1 in which said fastening means comprise enlarged pads secured to the inner surface of said carrier-member web, said fastening means including a headed screw engaging the inner surface of said pad and projecting laterally from said carrier-emember web.
Claim 5
Dependent Claim
31 words
The structure as claimed in claim 1 in which said matingly-engaged flanges comprise at least one outwardly directed flange-edge on one member telescoped within the side flanges on said other member.
Claim 6
Dependent Claim
22 words
The structure as claimed in claim 4 including mechanical fasteners extending intermediately through overlapped flange portions adjacent said outwardly directed flange edge.
Claim 7
Dependent Claim
23 words
The structure as claimed in claim 5 including supplemental angle elements overlying said outwardly directed flanges and through which said mechanical fasteners extend.
References Cited (Backward Citations)
US1075767A
Cited
US811057A
Cited
DE899753C
Cited
US2778134A
Cited
US2895245A
Cited
GB880520A
Cited
GB1107314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |