Patent US2990739A successfully refreshed from Google Patents.
US2990739A
Expired / Lapsed
US
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Axial-impact tool with reversible chuck
Assignee: U S E DIAMOND Inc
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Filing: 1959-06-08
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Granted: 1961-07-04
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Expires: 1979-06-08
Abstract
No abstract record available.
Inventors
- 👤 Kenneth B Zifferer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:03
CPC Classifications
B; B25; B25F; B25F1/00; B25F1/02; B25C; B25C3/00; B25C3/006; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17008; Y10T408/00; Y10T408/94
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US187600A
Cited
CH90367A
Cited
US1697414A
Cited
US1805005A
Cited
US2855817A
Cited
US2887925A
Cited
US2787178A
Cited
US2815692A
Cited
US2839754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |