US2735346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
frantz
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
•
Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:11
CPC Classifications
G; G03; G03D; G03D7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A DEVELOPING APPARATUS FOR LIGHT SENSITIVE MATERIAL OF THE TYPE UTILIZING A VOLATILE LIQUID WHICH FORMS A GAS FOR DEVELOPMENT, A DEVELOPING CHAMBER, MEANS IN SAID CHAMBER FOR GENERATING SAID GAS BY EVAPORATION OF SAID LIQUID, A DRAIN IN SAID CHAMBER FOR REMOVING THE CONDENSATE OF THE VAPORIZED LIQUID, A CLOSED CONTAINER INTO WHICH SAID CONDENSATE IS DRAINED, COMPRISING A METAL BOX, A HEAT CONFINING SHIELD DIVIDING SAID BOX INTO AN UPPER AND A LOWER SECTION, A CONDUIT CONNECTED TO SAID DRAIN AND EXTENDING INTO SAID LOWER SECTION, SAID SHIELD HAVING VENTS COMMUNICATING WITH SAID UPPER SECTION, MEANS FOR HEATING SAID CONTAINER AND VAPORIZING THE CONDENSATE COLLECTED THEREIN, AN AIR INLET TO SAID CONTAINER AND FORCED AIR EXHAUST MEANS ATTACHED TO SAID CONTAINER FOR REMOVING THE VAPOR THEREFROM.
Claim 2
Dependent Claim
129 words
IN A DEVELOPING APPARATUS FOR LIGHT SENSITIVE MATERIAL OF THE TYPE UTILIZING A VOLATILE LIQUID WHICH FORMS A GAS FOR DEVELOPMENT, A DEVELOPING CHAMBER, MEANS IN SAID CHAMBER FOR GENERATING SAID GAS BY EVAPORATION OF SAID LIQUID, A DRAIN IN SAID CHAMBER FOR REMOVING THE CONDENSATE OF THE VAPORIZED LIQUID, A CLOSED CONTAINER INTO WHICH SAID CONDENSATE IS DRAINED, COMPRISING A METAL BOX, A HEAT CONFINING SHIELD DIVIDING SAID BOX INTO AN UPPER AND A LOWER SECTION, A CONDUIT CONNECTED TO SAID DRAIN AND EXTENDING INTO SAID LOWER SECTION, SAID SHIELD HAVING VENTS COMMUNICATING WITH SAID UPPER SECTION, MEANS FOR HEATING SAID CONTAINER AND VAPORIZING THE CONDENSATE COLLECTED THEREIN, AN AIR INLET TO SAID CONTAINER AND FORCED AIR EXHAUST MEANS ATTACHED TO SAID CONTAINER FOR REMOVING THE VAPOR THEREFROM.
References Cited (Backward Citations)
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Cited
US1729361A
Cited
US1953160A
Cited
US2058983A
Cited
US2219584A
Cited
US2241104A
Cited
US2384155A
Cited
US2503225A
Cited
US2522155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |