Patent US3431841A successfully refreshed from Google Patents.
US3431841A
Expired / Lapsed
US
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Offset duplicating machines with master loading and ejecting mechanisms
Assignee: AB Dick Co
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Filing: 1964-07-24
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Granted: 1969-03-11
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Expires: 1984-07-24
Abstract
No abstract record available.
Inventors
- 👤 Kenneth J Tonkin
- 👤 John L Swanson
- 👤 Richard R Jeschke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:40
CPC Classifications
B; B41; B41L; B41L19/00; B41L39/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN A PRINTING MACHINE, THE COMBINATION COMPRISING A ROTATABLE MASTER CYLINDER FOR CARRYING A MASTER PRINTING SHEET, A BLANKET CYLINDER FOR RECEIVING ON OFFSET IMAGE FROM THE MASTER PRINTING SHEET, AN IMPRESSION CYLINDER FOR PRESSING COPY SHEETS AGAINST SAID BLANKET CYLINDER, A MOVABLE CONTROL LEVER SWINGABLE IN OPPOSITE DIRECTIONS FROM A NEUTRAL POSITION, DETENT MEANS FRO DETAINIGN SAID LEVER IN SAID NEUTRAL POSITION AND ALSO IN FIRST, SECOND AND THRID POSITIONS ON ONE SIDE OF SAID NEUTRAL POSTION, AND AN ADDITIONAL POSITION ON THE OTHER SIDE OF SAID NEUTRAL POSITION, MEANS OPERABLE BY MOVEMENT OF SAID CONTROL LEVER FROM SAID NEUTRAL POSITION TO SAID FIRST POSTION FOR CAUSING THE APPLICATION OF INK AND WATER TO THE MASTER PRINTING SHEET, MEANS OPERABLE BY MOVEMEMT OF SAID CONTROL LEVER TO SAID SECOND POSITION FOR CAUSING THE DEVELOPMENT OF
Claim 2
Dependent Claim
136 words
IN A PRINTING MACHINE, THE COMBINATION COMPRISING A ROTATABLE MASTER CYLINDER FOR CARRYING A MASTER PRINTING SHEET, A BLANKET CYLINDER FOR RECEIVING ON OFFSET IMAGE FROM THE MASTER PRINTING SHEET, AN IMPRESSION CYLINDER FOR PRESSING COPY SHEETS AGAINST SAID BLANKET CYLINDER, A MOVABLE CONTROL LEVER SWINGABLE IN OPPOSITE DIRECTIONS FROM A NEUTRAL POSITION, DETENT MEANS FRO DETAINIGN SAID LEVER IN SAID NEUTRAL POSITION AND ALSO IN FIRST, SECOND AND THRID POSITIONS ON ONE SIDE OF SAID NEUTRAL POSTION, AND AN ADDITIONAL POSITION ON THE OTHER SIDE OF SAID NEUTRAL POSITION, MEANS OPERABLE BY MOVEMENT OF SAID CONTROL LEVER FROM SAID NEUTRAL POSITION TO SAID FIRST POSTION FOR CAUSING THE APPLICATION OF INK AND WATER TO THE MASTER PRINTING SHEET, MEANS OPERABLE BY MOVEMEMT OF SAID CONTROL LEVER TO SAID SECOND POSITION FOR CAUSING THE DEVELOPMENT OF
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |