US2782824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flat or spade type wood boring bit
Assignee: IRWIN AUGER BIT Co
•
Filing: 1954-04-27
•
Granted: 1957-02-26
•
Expires: 1974-04-27
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:40
CPC Classifications
B; B27; B27G; B27G15/00; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/902; Y10T408/905; Y10T408/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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DE523724C
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |