US2690645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Watch crown
Assignee: Hamilton Watch Co
•
Filing: 1951-01-11
•
Granted: 1954-10-05
•
Expires: 1971-01-11
Abstract
No abstract record available.
Inventors
- 👤 Rueger Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:21
CPC Classifications
G; G04; G04B; G04B3/00; G04B3/04; G04B3/041; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49579; Y10T29/49586; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918; Y10T29/49925; Y10T29/49934
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US355144A
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US1627471A
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US1904241A
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US1910078A
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US2090251A
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US2426289A
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CH241453A
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US2511757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |