US3447052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillating motor drive system
Assignee: Hamilton Watch Co
•
Filing: 1965-10-12
•
Granted: 1969-05-27
•
Expires: 1985-10-12
Abstract
No abstract record available.
Inventors
- 👤 Vincent W Martin
- 👤 Henry A Lyczak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:30
CPC Classifications
H; H02; H02K; H02K33/00; G; G04; G04C; G04C3/00; G04C3/04; G04C3/06; G04C3/065; G04C3/067; G04C3/068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3124731A
Cited
US3299627A
Cited
US3095528A
Cited
US3152295A
Cited
US3134220A
Cited
US3218793A
Cited
US5310690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |