US3457720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stopwatch control mechanism
Assignee: Ebauches Bettlach SA
•
Filing: 1967-04-18
•
Granted: 1969-07-29
•
Expires: 1987-04-18
Abstract
No abstract record available.
Inventors
- 👤 Peter Bachmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:31
CPC Classifications
G; G04; G04F; G04F7/00; G04F7/04; G04F7/08; G04F7/0842; G04F7/0804; G04F7/0814
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2271593A
Cited
US2265906A
Cited
US2284418A
Cited
US2641899A
Cited
US2641900A
Cited
US2671308A
Cited
US2679135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |