US2912819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waterproof watch crown
Assignee: Joseph Waldman & Sons
•
Filing: 1957-07-19
•
Granted: 1959-11-17
•
Expires: 1977-07-19
Abstract
No abstract record available.
Inventors
- 👤 Jack J Waldman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:21
CPC Classifications
G; G04; G04B; G04B37/00; G04B37/08; G04B37/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1268821A
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GB368866A
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GB365923A
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US2579340A
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US2570117A
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US2638243A
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US2677328A
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GB729320A
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CH294764A
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FR1092189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |