Patent US2790639A successfully refreshed from Google Patents.
US2790639A
Expired / Lapsed
US
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Sheet holding and feed control device
Assignee: Individual
•
Filing: 1952-04-22
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Granted: 1957-04-30
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Expires: 1972-04-22
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Kilgariff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:43
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/46; B65H3/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1037792A
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US1867038A
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US1944176A
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US2022989A
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US2112341A
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US2284429A
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US2285224A
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US2626149A
Cited
US2685380A
Cited
DE842580C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |