Patent US3273027A successfully refreshed from Google Patents.
US3273027A
Expired / Lapsed
US
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Three-terminal electrolytic device
Assignee: Johnson Matthey Ltd
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Filing: 1962-09-19
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Granted: 1966-09-13
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Expires: 1982-09-19
Abstract
No abstract record available.
Inventors
- 👤 Pierre L Bourgault
- 👤 Batelaan Joost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:44
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/008; H01G9/012; H01C; H01C1/00; H01C1/14; H01C7/00; H01C7/001; H01G4/00; H01G4/40; H01G9/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN A DEVICE OF THE CHARACTER DESCRIBED, THE COMBINATION COMPRISING AN ANODE OF FILM-FORMING METAL HAVING INTER-COMMUNICATING PORES, A CONTINUOUS DIELECTRIC FILM ON THE SURFACE OF SAID ANODE AND SAID PORES, A RESISTIVE ELECTROLYTE COVERING SAID FILM THROUGHOUT SAID ANODE, AN ANODE TERMINAL ELECTRICALLY CONNECTED TO SAID ANODE AND INSULATED FROM SAID ELECTROLYTE, AND A PAIR OF CATHODE TERMINALS ELECTRICALLY CONNECTED TO SPACED REGIONS OF SAID ELECTROLYTE.
Claim 2
Dependent Claim
67 words
IN A DEVICE OF THE CHARACTER DESCRIBED, THE COMBINATION COMPRISING AN ANODE OF FILM-FORMING METAL HAVING INTER-COMMUNICATING PORES, A CONTINUOUS DIELECTRIC FILM ON THE SURFACE OF SAID ANODE AND SAID PORES, A RESISTIVE ELECTROLYTE COVERING SAID FILM THROUGHOUT SAID ANODE, AN ANODE TERMINAL ELECTRICALLY CONNECTED TO SAID ANODE AND INSULATED FROM SAID ELECTROLYTE, AND A PAIR OF CATHODE TERMINALS ELECTRICALLY CONNECTED TO SPACED REGIONS OF SAID ELECTROLYTE.
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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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |