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Patent US2543924A successfully refreshed from Google Patents.
US2543924A
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US
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Adjustable seat support for chairs
Assignee: Individual
•
Filing: 1948-10-02
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Granted: 1951-03-06
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Expires: 1968-10-02
Abstract
No abstract record available.
Inventors
- 👤 Mondy Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:16
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/20; A47C3/28; A47C1/00; A47C1/02; A47C1/022; A47C1/024; A47C1/027; A47C7/00; A47C7/36; A47C7/40; A47C7/44; A47C7/441; A47C7/443
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |