Patent US1842830A successfully refreshed from Google Patents.
US1842830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power screw driver
Assignee: Delco Remy Corp
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Filing: 1929-10-17
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Granted: 1932-01-26
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Expires: 1949-10-17
Abstract
No abstract record available.
Inventors
- 👤 John Q Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:26
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0438; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1021; Y10T279/1033; Y10T279/1037; Y10T279/1041; Y10T279/1049; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/53143; Y10T29/53148; Y10T29/53265
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) | 1935-01-25 | 1935-07-27 | 1936-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-01-25 | 1939-07-27 | 1940-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-01-25 | 1943-07-27 | 1944-01-26 | $7700.00 | Window Closed / Lapsed |