Patent US3077155A successfully refreshed from Google Patents.
US3077155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for treating photographic sheet material
Assignee: Pako Corp
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Filing: 1960-08-08
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Granted: 1963-02-12
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Expires: 1980-08-08
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Maddock
- 👤 Eugene C Winter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:23
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/02; G03D13/08; G03D13/12; G03D13/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
IN A DEVICE FOR TREATING PHOTOGRAPHIC MATERIAL, A TANK HAVING SIDE WALLS, END WALLS AND A BOTTOM WALL, A CARRIER FRAME HAVING END MEMBERS CONNECTED TO TOP AND BOTTOM MEMBERS AND OPEN SIDES, COOPERATING MEANS FORMED ON SAID SIDE WALLS OF SAID TANK AND SAID TOP AND BOTTOM MEMBERS OF SAID CARRIER FRAME FOR HOLDING SHEET MATERIAL OUT OF A SINGLE PLANE WHEN SAID CARRIER FRAME IS POSITIONED WITHIN SAID TANK, SHEET MATERIAL IN SAID FRAME BEING ACCESSIBLE WHEN SAID FRAME IS LIFTED ONLY PARTIALLY FROM SAID TANK.
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |