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Patent US3014386A successfully refreshed from Google Patents.
US3014386A
Expired / Lapsed
US
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Drill
Assignee: United Greenfield Corp
•
Filing: 1957-09-03
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Granted: 1961-12-26
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Expires: 1977-09-03
Abstract
No abstract record available.
Inventors
- 👤 William J Kallio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:58
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/04; B23B51/0486; B23B51/06; B23B51/063; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/899; Y10T408/909; Y10T408/9095
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) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |