Patent US2743976A successfully refreshed from Google Patents.
US2743976A
Expired / Lapsed
US
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Collapsible supporting devices for drop leaves
Assignee: Individual
•
Filing: 1954-07-15
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Granted: 1956-05-01
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Expires: 1974-07-15
Abstract
No abstract record available.
Inventors
- 👤 Paul S Gaston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:36
CPC Classifications
A; A47; A47B; A47B5/00; A47B5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US184636A
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US199150A
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US245926A
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US1224129A
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US2284003A
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US2329293A
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US2314144A
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US2316447A
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US2602716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |