US3342718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the recovery of silver from used photographic fixing solutions by electrolysis
Assignee: Individual
•
Filing: 1964-01-21
•
Granted: 1967-09-19
•
Expires: 1984-01-21
Abstract
No abstract record available.
Inventors
- 👤 William M Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:43
CPC Classifications
C; C25; C25C; C25C1/00; C25C1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
AN ELECTROPLATING CELL FOR RECOVERING SILVER FROM PHOTOGRAPHIC FIXING SOLUTIONS COMPRSING A RIGID SUPPORT INCLUDING A VERTICAL MAIN WALL AND PARALLEL TOP AND BOTTOM HORIZONTAL WALLS, A HOOKED FLANGE PROJECTING REARWARDLY FROM THE TOP CORNER DEFINED BETWEEN SAID TOP WALL AND MAIN WALL AND HAVING A DEPENDING PORTION EXTENDING PARALLEL TO SAID MAIN WALL AND DEFINING THEREWITH A DOWNWARDLY FACING CHANNEL ADAPTED TO RECEIVE THE TOP EDGE OF THE WALL OF A FIXING SOLUTION TANK, WHEREBY TO SUSPEND THE SUPPORT IN THE TANK WITH SAID MAIN WALL ADJACENT TO THE TANK WALL, LEAVING THE TWO SIDES OPEN, A VERTICAL SHAFT JOURNALED AT ITS TOP AND BOTTOM ENDS IN SAID TOP AND BOTTOM WALLS, A PLURALITY OF METAL CATHODE DISC SECURED ON SAID SHAFT, A SUBSTANTIAL NUMBER OF SAID DISC BEING NON-PERPENDICULAR TO THE SHAFT, A CATHODE TERMINAL ON THE
Claim 2
Dependent Claim
139 words
AN ELECTROPLATING CELL FOR RECOVERING SILVER FROM PHOTOGRAPHIC FIXING SOLUTIONS COMPRSING A RIGID SUPPORT INCLUDING A VERTICAL MAIN WALL AND PARALLEL TOP AND BOTTOM HORIZONTAL WALLS, A HOOKED FLANGE PROJECTING REARWARDLY FROM THE TOP CORNER DEFINED BETWEEN SAID TOP WALL AND MAIN WALL AND HAVING A DEPENDING PORTION EXTENDING PARALLEL TO SAID MAIN WALL AND DEFINING THEREWITH A DOWNWARDLY FACING CHANNEL ADAPTED TO RECEIVE THE TOP EDGE OF THE WALL OF A FIXING SOLUTION TANK, WHEREBY TO SUSPEND THE SUPPORT IN THE TANK WITH SAID MAIN WALL ADJACENT TO THE TANK WALL, LEAVING THE TWO SIDES OPEN, A VERTICAL SHAFT JOURNALED AT ITS TOP AND BOTTOM ENDS IN SAID TOP AND BOTTOM WALLS, A PLURALITY OF METAL CATHODE DISC SECURED ON SAID SHAFT, A SUBSTANTIAL NUMBER OF SAID DISC BEING NON-PERPENDICULAR TO THE SHAFT, A CATHODE TERMINAL ON THE
References Cited (Backward Citations)
US567503A
Cited
US789740A
Cited
US1181077A
Cited
US1468871A
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US1535577A
Cited
US1959531A
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GB627713A
Cited
FR1022529A
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US2810682A
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US2997438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |