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US3307458A
Expired / Lapsed
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Electrophotographic apparatus
Assignee: Harris Graphics Corp
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Filing: 1964-06-04
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Granted: 1967-03-07
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Expires: 1984-06-04
Abstract
No abstract record available.
Inventors
- 👤 Hunstiger Francis
- 👤 Herbert E Drake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:58
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/01; G03G15/0142; G03G15/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
APPARATUS FOR PROJECTING AN IMAGE ON A MOVABLE ELECTROPHOTOGRAPHIC WEB TRAVELLING IN A PREDETERMINED PATH COMPRISING: MEANS DEFINING A PROJECTED IMAGE PLANE, MEANS TO MAINTAIN THE WEB RELATIVELY FLAT IN SAID IMAGE PLANE, MEANS SPACED FROM SAID IMAGE PLANE FOR PROJECTING ONTO THE WEB A LIGHT IMAGE OF PREDETERMINED FIXED WIDTH RELATIVE TO THE WEB, SAID PROJECTION MEANS INCLUDING MEANS TO MOUNT AN ORIGINAL IN SPACED RELATION TO SAID IMAGE PLANE, MEANS TO SENSE LATERAL DEVIATION OF THE WEB FROM SAID PREDETERMINED PATH, AND MEANS COOPERATING WITH SAID SENSING MEANS TO EFFECT LATERAL MOVEMENT OF SAID PROJECTED IMAGE IN THE SAME DIRECTION AND IN AN AMOUNT EQUAL TO SAID LATERAL DDVIATION OF THE WEB WHEREBY THE PROJECTED IMAGE IS MAINTAINED IN LATERAL REGISTRY ON THE WEB.
Claim 2
Dependent Claim
126 words
APPARATUS FOR PROJECTING AN IMAGE ON A MOVABLE ELECTROPHOTOGRAPHIC WEB TRAVELLING IN A PREDETERMINED PATH COMPRISING: MEANS DEFINING A PROJECTED IMAGE PLANE, MEANS TO MAINTAIN THE WEB RELATIVELY FLAT IN SAID IMAGE PLANE, MEANS SPACED FROM SAID IMAGE PLANE FOR PROJECTING ONTO THE WEB A LIGHT IMAGE OF PREDETERMINED FIXED WIDTH RELATIVE TO THE WEB, SAID PROJECTION MEANS INCLUDING MEANS TO MOUNT AN ORIGINAL IN SPACED RELATION TO SAID IMAGE PLANE, MEANS TO SENSE LATERAL DEVIATION OF THE WEB FROM SAID PREDETERMINED PATH, AND MEANS COOPERATING WITH SAID SENSING MEANS TO EFFECT LATERAL MOVEMENT OF SAID PROJECTED IMAGE IN THE SAME DIRECTION AND IN AN AMOUNT EQUAL TO SAID LATERAL DDVIATION OF THE WEB WHEREBY THE PROJECTED IMAGE IS MAINTAINED IN LATERAL REGISTRY ON THE WEB.
References Cited (Backward Citations)
US2160277A
Cited
US3181418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |