Patent US2928621A successfully refreshed from Google Patents.
US2928621A
Expired / Lapsed
US
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Mandrel and actuator
Assignee: Individual
•
Filing: 1955-11-21
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Granted: 1960-03-15
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Expires: 1975-11-21
Abstract
No abstract record available.
Inventors
- 👤 Cohn Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:41
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/24; B65H75/242; B65H75/248; B65H75/2484; B65H54/00; B65H54/02; B65H54/40; B65H54/54; B65H54/543; B65H75/2487; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1041; Y10T279/1054; Y10T279/1058; Y10T82/00; Y10T82/25; Y10T82/2522
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734749A
Cited
US1281861A
Cited
US2315816A
Cited
US2310625A
Cited
US2345246A
Cited
US2717128A
Cited
US2738980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |