US2760837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable leg structure for portable supports
Assignee: Individual
•
Filing: 1954-11-18
•
Granted: 1956-08-28
•
Expires: 1974-11-18
Abstract
No abstract record available.
Inventors
- 👤 William J Wade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:09
CPC Classifications
A; A47; A47B; A47B3/00; A47B3/10; A47B21/00; A47B23/00; A47B2023/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US965338A
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US1063642A
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US1457618A
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US1585661A
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US1739449A
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US2433315A
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US2398693A
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US2451763A
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US2508627A
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US2542394A
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US2643926A
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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) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |