Patent US5855552A successfully refreshed from Google Patents.
US2983166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary cutting tool
Assignee: Individual
•
Filing: 1958-07-28
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Granted: 1961-05-09
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Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:16
CPC Classifications
B; B23; B23D; B23D77/00; B23D77/06; B23D77/10; Y; Y10; Y10T; Y10T407/00; Y10T407/13; Y10T407/19; Y10T407/1906; Y10T407/1928; Y10T407/193; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8583; Y10T408/85843
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2093742A
Cited
FR1018990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |