Patent US5471600A successfully refreshed from Google Patents.
Patent US3861327A successfully refreshed from Google Patents.
US3861327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bookcase support
Assignee: Individual
•
Filing: 1973-07-26
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Granted: 1975-01-21
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Expires: 1993-07-26
Abstract
Abstract A shelf support for a collapsible bookcase is disclosed. The shelf support is a stackable, invertible H-shaped vertical member which has first and second vertical posts and first and second cross bars interconnecting said posts. The vertical posts and cross bars define a slot in the member through which a shelf may be inserted and supported. The slot is preferably located away from the center of the vertical post so that by inverting the support member, shelves of different heights may be made. The vertical posts also have matable portions on the ends to allow for stacking of the support member for multiple shelving.
Inventors
- 👤 P Kevin Silson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:48
CPC Classifications
A; A47; A47B; A47B47/00; A47B47/04; A47B47/042; A47B87/00; A47B87/02; A47B87/0207
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
An invertible, stackable shelf support comprising: an H-shaped vertical support member having a. first and second vertical posts of predetermined height, and upper and lower cross bars interconnecting said posts, said cross bars being a predetermined distance apart and defining a space therebetween, said vertical posts having recesses therein complementary with said space, said space and said recess forming a continuous slot at a predetermined height less than half the predetermined height of said vertical posts so that upon insertion of a shelf through said slot said shelf is supported by said lower cross bar and by said vertical posts; and b. first matable portions at the upper end of the first vertical post and the lower end of the second vertical post, and second matable portions at the lower end of the first vertical post and the upper end of the second vertical post sized and shaped to fit first matable portions on a like support.
Claim 2
Dependent Claim
157 words
An invertible, stackable shelf support comprising: an H-shaped vertical support member having a. first and second vertical posts of predetermined height, and upper and lower cross bars interconnecting said posts, said cross bars being a predetermined distance apart and defining a space therebetween, said vertical posts having recesses therein complementary with said space, said space and said recess forming a continuous slot at a predetermined height less than half the predetermined height of said vertical posts so that upon insertion of a shelf through said slot said shelf is supported by said lower cross bar and by said vertical posts; and b. first matable portions at the upper end of the first vertical post and the lower end of the second vertical post, and second matable portions at the lower end of the first vertical post and the upper end of the second vertical post sized and shaped to fit first matable portions on a like support.
Claim 3
Dependent Claim
194 words
A collapsible bookcase comprising: a. a plurality of invertible, stackable H-shaped vertical support members having i. first and second vertical posts of predetermined height, and upper and lower cross bars interconnecting said posts, said cross bars being a predetermined distance apart and defining a space therebetween, said vertical posts having recesses therein complementary with said space, said space and said recess forming a continuous slot at a predetermined height less than half the predetermined height of said vertical posts so that upon insertion of a shelf through said slot said shelf is supported by said lower cross bar and by said vertical posts, and ii. first matable portions at the upper end of the first vertical post and the lower end of the second vertical post, and second matable portions at the lower end of the first vertical post and the upper end of the second vertical post sized and shaped to fit first matable portions on a like support; and b. at least one shelf sized and shaped to fit said slots in said vertical support members, and which extends into and is supported by at least two of said vertical support members.
Claim 4
Dependent Claim
194 words
A collapsible bookcase comprising: a. a plurality of invertible, stackable H-shaped vertical support members having i. first and second vertical posts of predetermined height, and upper and lower cross bars interconnecting said posts, said cross bars being a predetermined distance apart and defining a space therebetween, said vertical posts having recesses therein complementary with said space, said space and said recess forming a continuous slot at a predetermined height less than half the predetermined height of said vertical posts so that upon insertion of a shelf through said slot said shelf is supported by said lower cross bar and by said vertical posts, and ii. first matable portions at the upper end of the first vertical post and the lower end of the second vertical post, and second matable portions at the lower end of the first vertical post and the upper end of the second vertical post sized and shaped to fit first matable portions on a like support; and b. at least one shelf sized and shaped to fit said slots in said vertical support members, and which extends into and is supported by at least two of said vertical support members.
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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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |