Patent FR729176A successfully refreshed from Google Patents.
Patent US3167290A successfully refreshed from Google Patents.
US3167290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible self-leveling support structure
Assignee: Individual
•
Filing: 1963-07-24
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Granted: 1965-01-26
•
Expires: 1983-07-24
Abstract
No abstract record available.
Inventors
- 👤 George F Beckwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:24
CPC Classifications
A; A47; A47B; A47B91/00; A47B91/16; B; B25; B25H; B25H1/00; B25H1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A SUPPORT STRUCTURE COMPRISING, IN COMBINATION, A RIDGE BAR, A PAIR OF LEGS PIVOTALLY CONNECTED TO SAID RIDGE BAR, A TIE BAR LOOSELY CONNECTED TO AND BRIDGING THE LEGS OF EACH PAIR OF LEGS, A COLLAR SLIDABLE ON EACH TIE BAR, AN ANNULAR RECESS IN SAID TIE BAR OVER WHICH THE COLLAR RESTS, MEANS IN SAID COLLAR ENGAGEABLE IN THE ANNULAR RECESS, AND BRACE RODS ONE CONNECTED TO EACH COLLAR AND TO THE RIDGE BAR.
Claim 2
Dependent Claim
75 words
A SUPPORT STRUCTURE COMPRISING, IN COMBINATION, A RIDGE BAR, A PAIR OF LEGS PIVOTALLY CONNECTED TO SAID RIDGE BAR, A TIE BAR LOOSELY CONNECTED TO AND BRIDGING THE LEGS OF EACH PAIR OF LEGS, A COLLAR SLIDABLE ON EACH TIE BAR, AN ANNULAR RECESS IN SAID TIE BAR OVER WHICH THE COLLAR RESTS, MEANS IN SAID COLLAR ENGAGEABLE IN THE ANNULAR RECESS, AND BRACE RODS ONE CONNECTED TO EACH COLLAR AND TO THE RIDGE BAR.
References Cited (Backward Citations)
US511466A
Cited
US1318195A
Cited
US2374670A
Cited
US2546097A
Cited
US2974431A
Cited
US2814541A
Cited
US3008535A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |