US2813612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single sheet feed mechanism
Assignee: Unisys Corp
•
Filing: 1953-07-24
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Granted: 1957-11-19
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Expires: 1973-07-24
Abstract
No abstract record available.
Inventors
- 👤 Arthur G Berglund
- 👤 Walter H Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:08
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/10; B41J13/103; B65; B65H; B65H2220/00; B65H2220/01; B65H2220/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |