US1212786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring-motor escapement.
Assignee: Individual
•
Filing: 1916-01-19
•
Granted: 1917-01-16
•
Expires: 1936-01-19
Abstract
No abstract record available.
Inventors
- 👤 Frank Magidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:35
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/02; H01Q3/08; F; F16; F16H; F16H35/00; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1502; Y10T74/22
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) | 1920-01-16 | 1920-07-17 | 1921-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-01-16 | 1924-07-17 | 1925-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-01-16 | 1928-07-17 | 1929-01-16 | $7700.00 | Window Closed / Lapsed |