US2925371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic cell
Assignee: Carwin Co
•
Filing: 1956-06-01
•
Granted: 1960-02-16
•
Expires: 1976-06-01
Abstract
No abstract record available.
Inventors
- 👤 Carl E Van Winckel
- 👤 Robert V Smith
- 👤 Hutz Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:12
CPC Classifications
C; C25; C25B; C25B3/00; C25B3/20; C25B3/25; C25B3/01; C25B3/07; C25B3/09; C25B3/11; C25B9/00; C25B9/70; C25B9/73; C25B9/77
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
ELECTROLYTIC APPARATUS COMPRISING AN UPRIGHT GENERALLY RECTANGULAR HOLLOW CELL FRAME HAVING AN AXIS PERPENDICULAR TO THE PLANE OF THE RECTANGLE AND AT LEAST ONE OPEN SIDE OF RELATIVELY LARGE DIMENSION AS COMPARED WITH THE AXIAL FRAME THICKNESS, SAID FRAME ENCLOSING A CELL CHAMBER FOR CONTAINING A CATHOLYTE COMPRISING AN AQUEOUS SUSPENSION OF A REDUCIBLE, ORGANIC COMPOUND THAT IS INSOLUBLE IN THE AQUEOUS SUSPENSION, AN ELECTRODE HOUSED WITHIN SAID CELL CHAMBER MOUNTED FOR VERTICAL RECIPROCATION AND ATTACHED TO MEANS FOR RECIPROCATING SAID ELECTRODE IN A DIRECTION PERPENDICULAR TO SAID AXIS, A DIAPHRAGM SECURED AT SAID OPEN SIDE OF SAID FRAME IN LIQUID-TIGHT RELATIONSHIP WITH RESPECT THERETO, SAID ELETRODE COMPRISNG A FRAMEWORK AND A SCREEN SUPPORTED BY
Claim 2
Dependent Claim
115 words
ELECTROLYTIC APPARATUS COMPRISING AN UPRIGHT GENERALLY RECTANGULAR HOLLOW CELL FRAME HAVING AN AXIS PERPENDICULAR TO THE PLANE OF THE RECTANGLE AND AT LEAST ONE OPEN SIDE OF RELATIVELY LARGE DIMENSION AS COMPARED WITH THE AXIAL FRAME THICKNESS, SAID FRAME ENCLOSING A CELL CHAMBER FOR CONTAINING A CATHOLYTE COMPRISING AN AQUEOUS SUSPENSION OF A REDUCIBLE, ORGANIC COMPOUND THAT IS INSOLUBLE IN THE AQUEOUS SUSPENSION, AN ELECTRODE HOUSED WITHIN SAID CELL CHAMBER MOUNTED FOR VERTICAL RECIPROCATION AND ATTACHED TO MEANS FOR RECIPROCATING SAID ELECTRODE IN A DIRECTION PERPENDICULAR TO SAID AXIS, A DIAPHRAGM SECURED AT SAID OPEN SIDE OF SAID FRAME IN LIQUID-TIGHT RELATIONSHIP WITH RESPECT THERETO, SAID ELETRODE COMPRISNG A FRAMEWORK AND A SCREEN SUPPORTED BY
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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) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |