Patent US2658099A successfully refreshed from Google Patents.
US2658099A
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Microporous carbon and graphite articles, including impregnated battery electrodes and methods of making the same
Assignee: Individual
•
Filing: 1949-10-11
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Granted: 1953-11-03
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Expires: 1969-10-11
Abstract
No abstract record available.
Inventors
- 👤 Basset Lucien Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:21
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/80; C; C01; C01B; C01B32/00; C04; C04B; C04B38/00; C04B38/04; H01M4/04; H01M4/66; H01M4/663; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A FABRICATED SHAPE OF SUBSTANTIALLY PURE CARBON HAVING A POROSITY CHARACTERIZED BY PORE SIZES AVERAGING BELOW ABOUT 5 MICRONS, AN AP-
Claim 2
Dependent Claim
21 words
A FABRICATED SHAPE OF SUBSTANTIALLY PURE CARBON HAVING A POROSITY CHARACTERIZED BY PORE SIZES AVERAGING BELOW ABOUT 5 MICRONS, AN AP-
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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) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |