US663582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking device for adjustable chairs.
Assignee: Individual
•
Filing: 1900-07-03
•
Granted: 1900-12-11
•
Expires: 1920-07-03
Abstract
No abstract record available.
Inventors
- 👤 Frederick Robbin Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:35
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/022; A47C1/024; A47C1/026
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1903-12-11 | 1904-06-11 | 1904-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-12-11 | 1908-06-11 | 1908-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-12-11 | 1912-06-11 | 1912-12-11 | $7700.00 | Window Closed / Lapsed |