Patent US1893261A successfully refreshed from Google Patents.
US1893261A
Expired / Lapsed
US
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Motor for driving flexible shafts
Assignee: Individual
•
Filing: 1929-09-19
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Granted: 1933-01-03
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Expires: 1949-09-19
Abstract
No abstract record available.
Inventors
- 👤 Herbert F Apple
- 👤 Edward M Apple
- 👤 Darroch Gourley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:30
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/14; H02K5/143; H02K5/148; H02K3/00; H02K3/46; H02K3/52; H02K3/521; H02K3/522
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) | 1936-01-03 | 1936-07-04 | 1937-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-01-03 | 1940-07-04 | 1941-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-01-03 | 1944-07-04 | 1945-01-03 | $7700.00 | Window Closed / Lapsed |