Patent US3291024A successfully refreshed from Google Patents.
US3291024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocopy machine
Assignee: American Photocopy Equipment Co
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Filing: 1964-05-28
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Granted: 1966-12-13
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Expires: 1984-05-28
Abstract
No abstract record available.
Inventors
- 👤 Burton D Eisner
- 👤 Philip J Burnstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:30
CPC Classifications
G; G03; G03D; G03D9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
IN A PHOTOCOPY MACHINE FOR OFFICE USE, MEANS FOR EXPOSING AN ORIGINAL AND A COPY SHEET COMPRISING IN COMBINATION, A SUPPORTING FRAME, A FLUORESCENT TUBE, AN ELONGATED TRANSPARENT CYLINDER FITTED OVER THE FLUORESCENT TUBE AND MOUNTED FOR ROTATION ABOUT ITS AXIS, A CONTINUOUS FLEXIBLE DRIVE BELT SUFFICIENTLY WIDE TO ACCOMMODATE THE WIDTH OF THE ORIGINAL AND COPY SHEET TRAINED ABOUT A PAIR OF SHAFTS JOURNALLED IN THE OUTER SIDE OF SAID FRAME SO THAT SAID BELT IS IN BEARING ENGAGEMENT WITH SAID TRANSPARENT CYLINDER, SAID BELT BEING PROVIDED WITH AN INWARDLY EXTENDING CENTRAL RIB AND SAID SHAFTS BEING PROVIDED WITH COMPLEMENTALLY FORMED AND LOCATED GROOVES WHICH RECEIVE SAID RIB SO AS TO PREVENT TRANSVERSE DISPLACEMENT OF SAID BELT DURING ROTATION OF THE SAME, MEANS FOR ADMITTING AN ORIGINAL AND COPY SHEET BETWEEN THE TRANSPARENT CYLINDER AND THE FLEXIBLE BELT FOR EXPOSING THE SAME OF THE LIGHT OF THE FLOURESCENT TUBE, AND A LIGHT SHIELD PROVIDED AROUND A PORTION OF SAID FLUORESCENT TUBE FOR CONCENTRAING THE LIGHT ON A PREDETERMINED ZONE OF THE ORIGINAL AND COPY SHEET IN THE AREA OF ENGAGEMENT BY SAID FLEXIBLE BELT.
Claim 2
Dependent Claim
185 words
IN A PHOTOCOPY MACHINE FOR OFFICE USE, MEANS FOR EXPOSING AN ORIGINAL AND A COPY SHEET COMPRISING IN COMBINATION, A SUPPORTING FRAME, A FLUORESCENT TUBE, AN ELONGATED TRANSPARENT CYLINDER FITTED OVER THE FLUORESCENT TUBE AND MOUNTED FOR ROTATION ABOUT ITS AXIS, A CONTINUOUS FLEXIBLE DRIVE BELT SUFFICIENTLY WIDE TO ACCOMMODATE THE WIDTH OF THE ORIGINAL AND COPY SHEET TRAINED ABOUT A PAIR OF SHAFTS JOURNALLED IN THE OUTER SIDE OF SAID FRAME SO THAT SAID BELT IS IN BEARING ENGAGEMENT WITH SAID TRANSPARENT CYLINDER, SAID BELT BEING PROVIDED WITH AN INWARDLY EXTENDING CENTRAL RIB AND SAID SHAFTS BEING PROVIDED WITH COMPLEMENTALLY FORMED AND LOCATED GROOVES WHICH RECEIVE SAID RIB SO AS TO PREVENT TRANSVERSE DISPLACEMENT OF SAID BELT DURING ROTATION OF THE SAME, MEANS FOR ADMITTING AN ORIGINAL AND COPY SHEET BETWEEN THE TRANSPARENT CYLINDER AND THE FLEXIBLE BELT FOR EXPOSING THE SAME OF THE LIGHT OF THE FLOURESCENT TUBE, AND A LIGHT SHIELD PROVIDED AROUND A PORTION OF SAID FLUORESCENT TUBE FOR CONCENTRAING THE LIGHT ON A PREDETERMINED ZONE OF THE ORIGINAL AND COPY SHEET IN THE AREA OF ENGAGEMENT BY SAID FLEXIBLE BELT.
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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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |