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US3022959A
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Self-locking core chucks
Assignee: Individual
•
Filing: 1957-10-14
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Granted: 1962-02-27
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Expires: 1977-10-14
Abstract
No abstract record available.
Inventors
- 👤 Arthur T Blake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:58
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/24; B65H75/242; B65H75/246; B65H75/247; D; D01; D01H; D01H7/00; D01H7/02; D01H7/04; D01H7/16; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1074; Y10T279/1079; Y10T279/1083; Y10T279/1091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE516937C
Cited
US1122627A
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GB386435A
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US2116243A
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US2379091A
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US2798678A
Cited
US2759680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |