Patent US2629322A successfully refreshed from Google Patents.
US2629322A
Expired / Lapsed
US
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Drive control means for rotary duplicating machines
Assignee: Ditto Inc
•
Filing: 1948-02-28
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Granted: 1953-02-24
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Expires: 1968-02-28
Abstract
No abstract record available.
Inventors
- 👤 Carl A Levin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:57
CPC Classifications
B; B41; B41L; B41L11/00; B41L11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1687587A
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US1993413A
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US2185188A
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US2176897A
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US2277967A
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US2421823A
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US2411122A
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US2423028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |