Patent US4182432A successfully refreshed from Google Patents.
US4182432A
Expired / Lapsed
US
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Support apparatus
Assignee: Individual
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Filing: 1978-06-23
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Granted: 1980-01-08
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Expires: 1998-06-23
Abstract
Abstract This invention relates to a knock down support apparatus which does not require any fasteners the principles of which are particularly adaptable to sawhorses, trestles and the like, which is capable of being knocked down or taken apart for transportation or storage in compact form.
Inventors
- 👤 Forrest T. Cossitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:09
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
102 words
A knock-down support apparatus comprised of interlocking legs and a T-section cross-beam, said legs having T-shaped cuts extending downwardly from the middle of and partially across the top thereof whereby upwardly extending leg projections are formed on opposite sides of said T-shaped cuts in the upper portion of said legs, and said T-section cross beam is correspondingly cut with slots extending upwardly from the bottom of the vertical section and opposing notches on the sides of the horizontal section to interlockingly fit said upwardly extending projections in the horizontal section and overlappingly fit together along the vertically slotted portions of said legs.
Claim 2
Dependent Claim
102 words
A knock-down support apparatus comprised of interlocking legs and a T-section cross-beam, said legs having T-shaped cuts extending downwardly from the middle of and partially across the top thereof whereby upwardly extending leg projections are formed on opposite sides of said T-shaped cuts in the upper portion of said legs, and said T-section cross beam is correspondingly cut with slots extending upwardly from the bottom of the vertical section and opposing notches on the sides of the horizontal section to interlockingly fit said upwardly extending projections in the horizontal section and overlappingly fit together along the vertically slotted portions of said legs.
Claim 3
Dependent Claim
32 words
Apparatus as defined in claim 1 wherein the top surfaces of the uncut portion of said legs and the horizontal section of said T-section cross beam form together a load bearing surface.
References Cited (Backward Citations)
US3035660A
Cited
US3339920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-07 | 1983-07-09 | 1984-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-07 | 1987-07-09 | 1988-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-07 | 1991-07-09 | 1992-01-08 | $7700.00 | Window Closed / Lapsed |