Patent US3169805A successfully refreshed from Google Patents.
US3169805A
Expired / Lapsed
US
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Chuck and handle for manual installation of self-drilling expansion shells
Assignee: Phillips Drill Co Inc
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Filing: 1962-10-18
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Granted: 1965-02-16
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Expires: 1982-10-18
Abstract
No abstract record available.
Inventors
- 👤 Richard E Dieterich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:11
CPC Classifications
B; B25; B25D; B25D17/00; B25D17/005; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17957; Y10T279/17965; Y10T408/00; Y10T408/94; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1714708A
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US2147343A
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US2829898A
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US2896212A
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US2926353A
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US3028167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |