US2857789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power operated tool with controlled power feed
Assignee: Gardner Denver Inc
•
Filing: 1953-01-27
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Granted: 1958-10-28
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Expires: 1973-01-27
Abstract
No abstract record available.
Inventors
- 👤 Claude L Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:43
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/26; B23Q5/261; B23Q5/263; B23Q5/265; Y; Y10; Y10S; Y10S60/00; Y10S60/907; Y10T; Y10T408/00; Y10T408/16; Y10T408/17; Y10T408/172; Y10T408/65; Y10T408/675; Y10T408/6757
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1812533A
Cited
US1911132A
Cited
US2079640A
Cited
US2335809A
Cited
US2459902A
Cited
US2690205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |