US2379801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing stepped wire
Assignee: Hamilton Watch Co
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Filing: 1943-05-03
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Granted: 1945-07-03
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Expires: 1963-05-03
Abstract
No abstract record available.
Inventors
- 👤 Henry Ralph Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:01
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/04; B21C37/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-07-02 | 1949-01-01 | 1949-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-07-02 | 1953-01-01 | 1953-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-07-02 | 1957-01-01 | 1957-07-03 | $7700.00 | Window Closed / Lapsed |