US2537747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet feeding device
Assignee: Unisys Corp
•
Filing: 1947-01-22
•
Granted: 1951-01-09
•
Expires: 1967-01-22
Abstract
No abstract record available.
Inventors
- 👤 Elmer H Dreher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:06
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/48; B41J11/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2081836A
Cited
US2202595A
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US1874823A
Cited
US2055551A
Cited
US2055552A
Cited
US2138482A
Cited
FR86125E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |