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US2981055A
Expired / Lapsed
US
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Self-winding time-piece
Assignee: Manufacture des Montres Universal Perret Freres SA
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Filing: 1956-05-28
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Granted: 1961-04-25
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Expires: 1976-05-28
Abstract
No abstract record available.
Inventors
- 👤 Froidevaux Jean-Michel
- 👤 Bandi Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:28
CPC Classifications
G; G04; G04B; G04B5/00; G04B5/02; G04B5/18; G04B5/19; G04B5/195
Claims Analysis
Total Claims: 0
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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) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |