Patent US3285603A successfully refreshed from Google Patents.
US3285603A
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Assignee: GAF Chemicals Corp
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Filing: 1964-07-15
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Granted: 1966-11-15
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Expires: 1984-07-15
Abstract
No abstract record available.
Inventors
- 👤 Robert L Boston
- 👤 Robert C Goodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:20
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
THE METHOD OF SEPARATING THE ORIGINAL TRACING FROM THE SENSITIZED COPY MATERIAL AFTER EXPOSURE WHICH COMPRISES, PASSING BOTH SAID MATERIAL TOWARD CO-ENGAGING SURFACES OF A PAIR OF ROLLERS, APPLYING A HOLD FOR STOPPING THE ROTATION OF ONE OF SAID ROLLERS UPON ENGAGING SAID MATERIALS WHILE CONTINUING ROTATION OF THE OTHER OF SAID ROLLERS, THEREBY CONSTRAINING SAID MATERIAL IN CONTACT WITH SAID DRIVEN ROLLER TO SLIP BY SAID MATERIAL HELD BY SAID STOPPED ROLLER, RELEASING THE HOLD ON SAID STOPPED ROLLER AN CAUSING PASSAGE OF SAID SEPARATED MATERIAL INTO DIVERGENT DIRECTIONS.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |