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US2896212A
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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: 1958-04-21
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Granted: 1959-07-28
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Expires: 1978-04-21
Abstract
No abstract record available.
Inventors
- 👤 Frank A Werstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:23
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/14; B25; B25G; B25G3/00; B25G3/02; B25G3/12; B25G3/26; F; F16; F16B; F16B21/00; F16B21/10; F16B21/16; F16B21/18; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17957; Y10T279/17965; Y10T279/34; Y10T279/3431; Y10T29/00; Y10T29/53; Y10T29/53909; Y10T29/5393
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2829898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |