Patent US3990794A successfully refreshed from Google Patents.
US3990794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copying machine document folder
Assignee: Xerox Ltd
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Filing: 1975-03-03
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Granted: 1976-11-09
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Expires: 1995-03-03
Abstract
Abstract A method and apparatus for producing a single copy from a plurality of originals includes a means for positioning a first original or mask having an open portion or portions therein over an exposure platen, a means for laying a second original or master bearing a plurality of areas of information over the open portion of the first original to produce a copy bearing the information from one area and a means for moving the master between copies to produce another copy bearing information from a different area.
Inventors
- 👤 Herbert Nittmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:49
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/28; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03B27/6242
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
81 words
A copying machine having a copying window, means comprising a hinged folder for supporting a master document containing areas of information extending in one direction across the document over the window, means for moving the document support at right angles to said one direction and control means for moving the master document support in steps so that successive areas of information are presented at a given position on the copying window, the control means being responsive to the folder being opened.
Claim 2
Dependent Claim
81 words
A copying machine having a copying window, means comprising a hinged folder for supporting a master document containing areas of information extending in one direction across the document over the window, means for moving the document support at right angles to said one direction and control means for moving the master document support in steps so that successive areas of information are presented at a given position on the copying window, the control means being responsive to the folder being opened.
Claim 3
Dependent Claim
123 words
A copying machine having a copying window, means for supporting a master document containing areas of information extending in one direction across the document over the window, means for moving the document support at right angles to said one direction, said document support moving means being responsive to the copying cycle of the copying machine to move the document at a given point in the cycle; and, control means for moving the master document support in steps so that successive areas of information are presented at a given position on the copying window, said control means being arranged to inhibit the document support means at any predetermined position so that the copying machine can take more copies of the document at that position.
Claim 4
Dependent Claim
123 words
A copying machine having a copying window, means for supporting a master document containing areas of information extending in one direction across the document over the window, means for moving the document support at right angles to said one direction, said document support moving means being responsive to the copying cycle of the copying machine to move the document at a given point in the cycle; and, control means for moving the master document support in steps so that successive areas of information are presented at a given position on the copying window, said control means being arranged to inhibit the document support means at any predetermined position so that the copying machine can take more copies of the document at that position.
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) | 1979-11-09 | 1980-05-10 | 1980-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-09 | 1984-05-10 | 1984-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-09 | 1988-05-10 | 1988-11-09 | $7700.00 | Window Closed / Lapsed |