Patent US2536275A successfully refreshed from Google Patents.
US1665173A
Expired / Lapsed
US
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Hammer attachment for electric drills and the like
Assignee: Individual
•
Filing: 1925-08-10
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Granted: 1928-04-03
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Expires: 1945-08-10
Abstract
No abstract record available.
Inventors
- 👤 John I Misener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:43
CPC Classifications
B; B25; B25D; B25D17/00; B25D17/005; B25D2216/00; B25D2216/0007; B25D2216/0046; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18024
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) | 1931-04-03 | 1931-10-03 | 1932-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-04-03 | 1935-10-03 | 1936-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-04-03 | 1939-10-03 | 1940-04-03 | $7700.00 | Window Closed / Lapsed |