Patent US3543506A successfully refreshed from Google Patents.
US3543506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-winding wristwatch with a chronograph mechanism
Assignee: Buren Watch Co SA
•
Filing: 1968-08-01
•
Granted: 1970-12-01
•
Expires: 1988-08-01
Abstract
No abstract record available.
Inventors
- 👤 Gerald Dubois
- 👤 Paul Marmier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:47
CPC Classifications
G; G04; G04B; G04B19/00; G04B19/24; G04B19/243; G04B19/247; G04B19/253; G04B19/25333; G04B19/25353; G04B5/00; G04B5/02; G04B5/10; G04B5/14; G04F; G04F7/00; G04F7/04; G04F7/08; G04F7/0804; G04F7/0814; G04F7/0866; G04F7/0885
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2909029A
Cited
US3045418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |