US2815947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet separating and feeding mechanisms
Assignee: AB Dick Co
•
Filing: 1953-03-31
•
Granted: 1957-12-10
•
Expires: 1973-03-31
Abstract
No abstract record available.
Inventors
- 👤 Walter T Gollwitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:58
CPC Classifications
G; G06; G06K; G06K13/00; G06K13/02; G06K13/08; G06K13/10; G06K13/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1295123A
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US1980725A
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US2132415A
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US2131967A
Cited
US2262303A
Cited
US2265007A
Cited
US2566927A
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US2479060A
Cited
US2540762A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |