US2531849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-operated hand tool
Assignee: PROC EQUIPMENT CORP
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Filing: 1949-02-12
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Granted: 1950-11-28
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Expires: 1969-02-12
Abstract
No abstract record available.
Inventors
- 👤 Edward H Karleen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:00
CPC Classifications
B; B25; B25D; B25D16/00; B25D16/006; Y; Y10; Y10T; Y10T408/00; Y10T408/31; Y10T74/00; Y10T74/18; Y10T74/18024; Y10T74/18032; Y10T74/18056; Y10T74/18296; Y10T74/18304; Y10T74/18312; Y10T74/19; Y10T74/19642; Y10T74/19679; Y10T74/19684
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |