US3345927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for rapid development of photographic film
Assignee: GAF Chemicals Corp
•
Filing: 1964-06-26
•
Granted: 1967-10-10
•
Expires: 1984-06-26
Abstract
No abstract record available.
Inventors
- 👤 Takats Zoltan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:51
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/10; G03G15/108; G03D; G03D3/00; G03D3/02; G03D3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN AN APPARATUS FOR APPLYING LIQUID TO A MOVING PHOTOGRAPHIC FILM OR THE LIKE UTILIZING A TROUGH OF RESILIENT MATERIAL FOR CONTAINING SAID LIQUID, SAID TROUGH HAVING VERTICALLY EXTENDING LIPS ADAPTED TO CONTACT AND REMOVE EXCESS LIQUID FROM SAID FILM AND SEAL THE AREA OVERLYING SAID TROUGH, THAT IMPROVEMENT COMPRISING MEANS FOR AP PLYING ULTRASONIC AGITATION TO SAID LIPS OF SAID TROUGH THEREBY TO PREVENT DEPOSITION OF DIRT ON SAID LIPS AND SIMULTANEOUSLY REDUCE THE FRICTIONAL RESISTANCE BETWEEN SAID MOVING FILM AND SAID LIPS.
Claim 2
Dependent Claim
84 words
IN AN APPARATUS FOR APPLYING LIQUID TO A MOVING PHOTOGRAPHIC FILM OR THE LIKE UTILIZING A TROUGH OF RESILIENT MATERIAL FOR CONTAINING SAID LIQUID, SAID TROUGH HAVING VERTICALLY EXTENDING LIPS ADAPTED TO CONTACT AND REMOVE EXCESS LIQUID FROM SAID FILM AND SEAL THE AREA OVERLYING SAID TROUGH, THAT IMPROVEMENT COMPRISING MEANS FOR AP PLYING ULTRASONIC AGITATION TO SAID LIPS OF SAID TROUGH THEREBY TO PREVENT DEPOSITION OF DIRT ON SAID LIPS AND SIMULTANEOUSLY REDUCE THE FRICTIONAL RESISTANCE BETWEEN SAID MOVING FILM AND SAID LIPS.
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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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |