Patent US2013141A successfully refreshed from Google Patents.
Patent US3672765A successfully refreshed from Google Patents.
US3672765A
Expired / Lapsed
US
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Apparatus for making two-sided copies from two images on an original
Assignee: Eastman Kodak Co
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Filing: 1970-08-03
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Granted: 1972-06-27
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Expires: 1990-08-03
Abstract
Abstract TWO IMAGES FROM AN ORIGINAL ARE PLACED ON AN ENDLESS BELT 10. THE FIRST IMAGE IS XEROGRAPHICALLY TRANSFERRED TO ONE SIDE OF THE COPY PAPER 31. THE COPY PAPER IS NEXT TURNED OVER AS FOLLOWS. THE COPY IS FED PAST A SET OF ROLLERS 36, 37 AWAY FROM THE PATH OF BELT 10. AN AIR BLAST URGES THE COPY TO ANOTHER BELT 39. THE COPY SHEET MOVES ALONG BELT 39 UNTIL IT AGAIN MEETS THE MAIN BELT 10. AFTER THE COPY SHEET HAS BEEN REVERSED, THE SIDE WITHOUT THE FIRST IMAGE CAN RECEIVE THE SECOND IMAGE.
Inventors
- 👤 Conrad Altmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:22
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/23; G03G15/231; G03G15/232; G03G15/234; G03G2215/00; G03G2215/00172; G03G2215/00206; G03G2215/00261; G03G2215/0027; G03G2215/00278; Y; Y10; Y10S; Y10S271/00; Y10S271/902
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |