US2107629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable chair leg extension
Assignee: Individual
•
Filing: 1937-01-12
•
Granted: 1938-02-08
•
Expires: 1957-01-12
Abstract
No abstract record available.
Inventors
- 👤 Dallas Constance Hopkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:54
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/002; A47B; A47B91/00; A47B91/02; A47C3/00; A47C3/20; A47C3/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-02-07 | 1941-08-09 | 1942-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-02-07 | 1945-08-09 | 1946-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-02-07 | 1949-08-09 | 1950-02-08 | $7700.00 | Window Closed / Lapsed |