US2770080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for combining sheets of paper
Assignee: Dorr Oliver Inc
•
Filing: 1952-06-14
•
Granted: 1956-11-13
•
Expires: 1972-06-14
Abstract
No abstract record available.
Inventors
- 👤 Edwin R Hoyt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:45
CPC Classifications
B; B24; B24B; B24B9/00; B24B9/002; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1066; Y10T156/14; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1715; Y10T156/172
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US396553A
Cited
US1303027A
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US1634997A
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US1837821A
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US1804537A
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GB423559A
Cited
US2180433A
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US2217306A
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US2277373A
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US2263536A
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US2296934A
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US2252818A
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US2358572A
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US2431035A
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US2671990A
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US2671991A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |