Patent US1644432A successfully refreshed from Google Patents.
US1644432A
Expired / Lapsed
US
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Combination portable electric saw and drill
Assignee: Individual
•
Filing: 1925-01-05
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Granted: 1927-10-04
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Expires: 1945-01-05
Abstract
No abstract record available.
Inventors
- 👤 Harry W Howland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:50
CPC Classifications
B; B27; B27B; B27B9/00; B23; B23D; B23D49/00; B23D49/10; B23D49/16; B23D49/162; B27C; B27C9/00; B27C9/005
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) | 1930-10-03 | 1931-04-04 | 1931-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-10-03 | 1935-04-04 | 1935-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-10-03 | 1939-04-04 | 1939-10-04 | $7700.00 | Window Closed / Lapsed |