US2540823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatically adjustable chair or the like
Assignee: Individual
•
Filing: 1947-04-25
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Granted: 1951-02-06
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Expires: 1967-04-25
Abstract
No abstract record available.
Inventors
- 👤 Heller Maximilian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:42
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/28; A47C7/282; A47C1/00; A47C1/02; A47C1/031; A47C1/032; A47C1/033; A47C1/14; A47C1/143; A47C3/00; A47C3/12; A47C4/00; A47C4/28; A47C4/30; A47C7/18; A47C7/185
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) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |