Patent US3471095A successfully refreshed from Google Patents.
US3471095A
Expired / Lapsed
US
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Windup chuck
Assignee: EIDP Inc
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Filing: 1967-12-11
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Granted: 1969-10-07
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Expires: 1987-12-11
Abstract
No abstract record available.
Inventors
- 👤 Alvin Lenwood Ewing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:17
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/02; B65H54/40; B65H54/54; B65H54/543; B65H2402/00; B65H2402/20; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR763507A
Cited
US2219124A
Cited
US2620140A
Cited
US3253323A
Cited
US3272447A
Cited
US3335971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |