US2815640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Watch construction
Assignee: Individual
•
Filing: 1955-10-20
•
Granted: 1957-12-10
•
Expires: 1975-10-20
Abstract
No abstract record available.
Inventors
- 👤 Kirshner Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:11
CPC Classifications
G; G04; G04B; G04B47/00; G04B47/04; G04B47/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1850216A
Cited
CH207376A
Cited
US2342804A
Cited
GB682953A
Cited
CH282143A
Cited
CH283489A
Cited
CH289762A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |