US4102525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knockdown support and spacer for bookshelves
Assignee: Individual
•
Filing: 1977-02-14
•
Granted: 1978-07-25
•
Expires: 1997-02-14
Abstract
Abstract A knockdown support block for bookshelves or the like comprises a plurality of substantially rigid rectangular panels having the side edges thereof connected together by hinge like structure into a string of panels with connectors marketed under the trademark Velcro at the end panels and an intermediate panel so that the panels can be folded back and connected into a block or column of generally rectangular cross section.
Inventors
- 👤 Robert Norman Albano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:39
CPC Classifications
A; A47; A47B; A47B47/00; A47B47/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
108 words
A knockdown support column comprising: a plurality of substantially rigid rectangular panels having top, bottom, and side edges, hinge means connecting said panels along said side edges into a string having first and second end panels having a free edge and a plurality of intermediate panels, and connecting means on said free edge for connecting said free edge to an intermediate one of said panels when said panels are hinged to a position for defining a four sided three dimensional column having a plurality of sides each defined by a separate one of said panels including said end panels, said end panels defining opposite sides of said column.
Claim 2
Dependent Claim
108 words
A knockdown support column comprising: a plurality of substantially rigid rectangular panels having top, bottom, and side edges, hinge means connecting said panels along said side edges into a string having first and second end panels having a free edge and a plurality of intermediate panels, and connecting means on said free edge for connecting said free edge to an intermediate one of said panels when said panels are hinged to a position for defining a four sided three dimensional column having a plurality of sides each defined by a separate one of said panels including said end panels, said end panels defining opposite sides of said column.
Claim 3
Dependent Claim
24 words
The support column of claim 1, wherein said plurality comprises five panels, one of said intermediate panels extending diagonally across said three dimensional column.
Claim 4
Dependent Claim
17 words
The support column of claim 2, wherein said one panel is the center panel in said string.
Claim 5
Dependent Claim
46 words
The support column of claim 1, wherein said connecting means comprises a tab on said free edge and hook and pile fastening means marketed under the trademark Velcro on said tab and on the side panel adjacent said free end for connecting said side panels together.
Claim 6
Dependent Claim
48 words
The support column of claim 3, wherein said connecting means comprises a tab on said free edge, and hook and pile fastening means on said tab for engaging hook and pile fastening means on an intermediate one of said panels, said fastening means marketed under the trademark Velcro.
Claim 7
Dependent Claim
28 words
The support column of claim 5, wherein each of said panels comprises a rectangular cardboard sheet, and said hinge means comprise flexible sheet material connected between adjacent panels.
Claim 8
Dependent Claim
14 words
The support column of claim 6, wherein said sheet material encases said cardboard sheets.
References Cited (Backward Citations)
GB1134601A
Cited
US3519190A
Cited
US3532310A
Cited
US3683822A
Cited
US3752089A
Cited
US3942636A
Cited
US3853259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-24 | 1982-01-23 | 1982-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-24 | 1986-01-23 | 1986-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-24 | 1990-01-23 | 1990-07-25 | $7700.00 | Window Closed / Lapsed |