US2812178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet feeding apparatus
Assignee: DUX AB
•
Filing: 1953-05-11
•
Granted: 1957-11-05
•
Expires: 1973-05-11
Abstract
No abstract record available.
Inventors
- 👤 Hagren Sven Johan Harald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:56
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/08; B65H3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1175807A
Cited
GB273931A
Cited
US1804476A
Cited
US1945248A
Cited
US2033849A
Cited
US1976893A
Cited
US2109208A
Cited
US2259672A
Cited
US2568069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |