US3072026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic contact printers for electrostatic reproductions
Assignee: Individual
•
Filing: 1959-03-13
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Granted: 1963-01-08
•
Expires: 1979-03-13
Abstract
No abstract record available.
Inventors
- 👤 Mackrodt Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:25
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
AN ELECTROPHOTOGRAPHIC COPYING APPARATUS INCLUDING A HOUSING, PHOTOGRAPHIC EXPOSURE STRUCTURE WITHIN THE HOUSING, A FIRST DUCT EXTENDING FROM A WALL OF THE HOUSING TO A FEED ZONE ADJACENT THE EXPOSURE STRUCTURE, ELECTROSTATIC CHARGING ELEMENTS WITHIN SAID DUCT, A SECOND DUCT EXTENDING FROM A WALL OF THE HOUSING TO A LOCATION ADJACENT THE FEED ZONE, FEED MECHANISM IN THE FEED ZONE CONNECTED TO RECEIVE SHEETS FROM BOTH DUCTS AND PASS THEM TOGETHER ALONG AN EXPOSURE PATH WHERE THEY COOPERATE WITH THE EXPOSURE STRUCTURE TO CAUSE AN IMAGE ON ONE SHEET TO BE PHOTOGRAPHICALLY EXPOSED ON THE OTHER SHEET, ADJUSTABLE DIVERSION STRUCTURE MOVABLY POSITIONED ADJACENT THE FEED ZONE SO THAT IT CAN BE INSERTED IN AND WITHDRAWN FROM ZONE, AND A PASSAGEWAY FROM THE FEED ZONE TO THE EXTERIOR OF THE HOUSING, SAID PASSAGEWAY COOPERATING WITH THE DIVERSION STRUCTURE TO CAUSE A SHEET MOVING THROUGH THE FIRST DUCT TO BE DEFLECTED THROUGH SAID PASSAGEWAY AND OUT OF THE HOUSING WITHOUT BEING PHOTOGRAPHICALLY EXPOSED, WHEN THE DIVERSION STRUCTURE IS INSERTED IN THE FEED ZONE.
Claim 2
Dependent Claim
171 words
AN ELECTROPHOTOGRAPHIC COPYING APPARATUS INCLUDING A HOUSING, PHOTOGRAPHIC EXPOSURE STRUCTURE WITHIN THE HOUSING, A FIRST DUCT EXTENDING FROM A WALL OF THE HOUSING TO A FEED ZONE ADJACENT THE EXPOSURE STRUCTURE, ELECTROSTATIC CHARGING ELEMENTS WITHIN SAID DUCT, A SECOND DUCT EXTENDING FROM A WALL OF THE HOUSING TO A LOCATION ADJACENT THE FEED ZONE, FEED MECHANISM IN THE FEED ZONE CONNECTED TO RECEIVE SHEETS FROM BOTH DUCTS AND PASS THEM TOGETHER ALONG AN EXPOSURE PATH WHERE THEY COOPERATE WITH THE EXPOSURE STRUCTURE TO CAUSE AN IMAGE ON ONE SHEET TO BE PHOTOGRAPHICALLY EXPOSED ON THE OTHER SHEET, ADJUSTABLE DIVERSION STRUCTURE MOVABLY POSITIONED ADJACENT THE FEED ZONE SO THAT IT CAN BE INSERTED IN AND WITHDRAWN FROM ZONE, AND A PASSAGEWAY FROM THE FEED ZONE TO THE EXTERIOR OF THE HOUSING, SAID PASSAGEWAY COOPERATING WITH THE DIVERSION STRUCTURE TO CAUSE A SHEET MOVING THROUGH THE FIRST DUCT TO BE DEFLECTED THROUGH SAID PASSAGEWAY AND OUT OF THE HOUSING WITHOUT BEING PHOTOGRAPHICALLY EXPOSED, WHEN THE DIVERSION STRUCTURE IS INSERTED IN THE FEED ZONE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |