Patent US2823087A successfully refreshed from Google Patents.
US2823087A
Expired / Lapsed
US
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Folding leg mechanism
Assignee: Individual
•
Filing: 1955-08-17
•
Granted: 1958-02-11
•
Expires: 1975-08-17
Abstract
No abstract record available.
Inventors
- 👤 Abraham I Zimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:39
CPC Classifications
A; A47; A47B; A47B3/00; A47B3/08; A47B3/0809; A47B3/0815
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1709927A
Cited
US1910974A
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US1962126A
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US1979568A
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US1916823A
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US2003835A
Cited
US2076620A
Cited
US2227871A
Cited
US2271332A
Cited
US2574592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |