Patent US2828257A successfully refreshed from Google Patents.
US2828257A
Expired / Lapsed
US
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Multi-compartment electrolytic cell
Assignee: Individual
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Filing: 1954-02-17
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Granted: 1958-03-25
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Expires: 1974-02-17
Abstract
No abstract record available.
Inventors
- 👤 Robert E Briggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:09
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/44; B01D61/46; B01D61/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN A ELECTREOLYTIC CELL ASSEMBLY A TANK, A PLURALITY OF SUBSTANTIALLY VERTICAL APERTURE DEFINING FRAME MEMBERS ARRANGED IN SAID TANK IN SUBSTANTIALLY PARALLEL RELATIONSHIP, A PLURALITY VERTICAL ION PERMABLE DIAPHRAGMS INTERLEAVED BETWEEN SAID FRAME MEMBERS SO AS TO OVERLIE SAID APERTURES, THE TOP PROTIONS OF SAID FRAME MEMBERS HAVING SUPPORTING ELEMENTS ATTACHED THERETO AND EXTENDING TOWARD AN ADJACENT FRAME MEMBER AND SAID DIAPHRAGMS HAVING OPENING RECEIVING AREA SUPPORTING ELEMENTS AND OF GREATER CROSS-SECTIONAL AREA THAN SAID SUPPORTING ELEMENTS SO THAT SAID DIAPHRAGMS
Claim 2
Dependent Claim
82 words
IN A ELECTREOLYTIC CELL ASSEMBLY A TANK, A PLURALITY OF SUBSTANTIALLY VERTICAL APERTURE DEFINING FRAME MEMBERS ARRANGED IN SAID TANK IN SUBSTANTIALLY PARALLEL RELATIONSHIP, A PLURALITY VERTICAL ION PERMABLE DIAPHRAGMS INTERLEAVED BETWEEN SAID FRAME MEMBERS SO AS TO OVERLIE SAID APERTURES, THE TOP PROTIONS OF SAID FRAME MEMBERS HAVING SUPPORTING ELEMENTS ATTACHED THERETO AND EXTENDING TOWARD AN ADJACENT FRAME MEMBER AND SAID DIAPHRAGMS HAVING OPENING RECEIVING AREA SUPPORTING ELEMENTS AND OF GREATER CROSS-SECTIONAL AREA THAN SAID SUPPORTING ELEMENTS SO THAT SAID DIAPHRAGMS
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) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |