US2728245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ratchet mechanism for precision gears
Assignee: Gebr Junghans AG
•
Filing: 1952-11-28
•
Granted: 1955-12-27
•
Expires: 1972-11-28
Abstract
No abstract record available.
Inventors
- 👤 Jean J A Van Der Kaa
- 👤 Kopp Anton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:03
CPC Classifications
G; G04; G04B; G04B11/00; G04B11/006; F; F16; F16D; F16D41/00; F16D41/12; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2133; Y10T74/2136
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |