US3429171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radius spin drill
Assignee: JOSEPH J FEHER
•
Filing: 1965-10-21
•
Granted: 1969-02-25
•
Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Feher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:45
CPC Classifications
B; B21; B21D; B21D31/00; B21D31/02; B21J; B21J5/00; B21J5/06; B21J5/063; B21J5/066; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE570157A
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US382924A
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DE583542C
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US1906953A
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US1837451A
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US2566738A
Cited
US2910897A
Cited
US3060562A
Cited
US3044341A
Cited
US3094893A
Cited
US3094767A
Cited
US3238836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |