Patent US3606309A successfully refreshed from Google Patents.
US3606309A
Expired / Lapsed
US
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Sheet separating device for photocopying machine
Assignee: AB Dick Co
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Filing: 1970-05-01
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Granted: 1971-09-20
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Expires: 1990-05-01
Abstract
Abstract A SHEET SEPARATING DEVICE FOR AN ELECTROSTATIC CONTACT TYPE COPYING MACHINE. THE SEPARATING DEVICE IS FORMED OF A THIN WEB OF TRANSPARENT MATERIAL WHICH HAS ON THE EXIT SIDE A SHEET DIVERTER FORMED OF A PAIR OF DIVERGING SECTIONS EACH OF WHICH SECTIONS FLARE OUTWARDLY.
Inventors
- 👤 Edward J Petrick
- 👤 Raymond J Schmidlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:26
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/24; G03G; G03G15/00; G03G15/22; G03G15/225; Y; Y10; Y10S; Y10S271/00; Y10S271/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |