US1640533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Cutler Hammer Manufacturing Co
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Filing: 1924-12-06
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Granted: 1927-08-30
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Expires: 1944-12-06
Abstract
No abstract record available.
Inventors
- 👤 John S Coldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:57
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/10; B65H19/18; B65H19/1857; B65H19/1873; B65H19/1805; B65H19/1826; B65H19/1836; B65H2301/00; B65H2301/40; B65H2301/46; B65H2301/461; B65H2301/4611; B65H2301/46115; B65H2301/4615; B65H2301/4617; B65H2301/46172; B65H2301/463; B65H2301/4631; B65H2301/464; B65H2301/46414
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) | 1930-08-29 | 1931-02-28 | 1931-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-08-29 | 1935-02-28 | 1935-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-08-29 | 1939-02-28 | 1939-08-30 | $7700.00 | Window Closed / Lapsed |