US3301159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing device for motion picture films
Assignee: GAF Chemicals Corp
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Filing: 1964-05-18
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Granted: 1967-01-31
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Expires: 1984-05-18
Abstract
No abstract record available.
Inventors
- 👤 Ira B Current
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:01
CPC Classifications
G; G03; G03D; G03D5/00; G03D5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
DEVICE FOR IMPINGING SOLUTIONS ON A LONG STRIP COMPRISING A CHANNEL FOR GUIDING SAID STRIP IN A CIRCULAR PATH, A SOLUTION SUMP POSITIONED BELOW SAID CHANNEL, AND AN IMPELLER ROTATABLY MOUNTED WITHIN THE CIRCULAR PATH OF SAID CHANNEL AND TAPERING DOWNWARDLY INTO SAID SUMP, SAID IMPELLER BEING FORMED WITH GUIDE MEANS SPIRALLY EXTENDING FROM ITS LOWER END UPWARDLY AND OUTWARDLY TOWARDS
Claim 2
Dependent Claim
61 words
DEVICE FOR IMPINGING SOLUTIONS ON A LONG STRIP COMPRISING A CHANNEL FOR GUIDING SAID STRIP IN A CIRCULAR PATH, A SOLUTION SUMP POSITIONED BELOW SAID CHANNEL, AND AN IMPELLER ROTATABLY MOUNTED WITHIN THE CIRCULAR PATH OF SAID CHANNEL AND TAPERING DOWNWARDLY INTO SAID SUMP, SAID IMPELLER BEING FORMED WITH GUIDE MEANS SPIRALLY EXTENDING FROM ITS LOWER END UPWARDLY AND OUTWARDLY TOWARDS
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |