US2511670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet detecting means in printing machines
Assignee: AB Dick Co
•
Filing: 1946-02-16
•
Granted: 1950-06-13
•
Expires: 1966-02-16
Abstract
No abstract record available.
Inventors
- 👤 Walter T Gollwitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:35
CPC Classifications
B; B41; B41L; B41L47/00; B41L47/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US567259A
Cited
US1186973A
Cited
US1440670A
Cited
US1889958A
Cited
US1988904A
Cited
US1945644A
Cited
US2211772A
Cited
US2296277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |