US2924634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon diffuser for gas activated batteries
Assignee: Individual
•
Filing: 1957-07-11
•
Granted: 1960-02-09
•
Expires: 1977-07-11
Abstract
No abstract record available.
Inventors
- 👤 Fischbach Adolph
- 👤 John E Teti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:44
CPC Classifications
H; H01; H01M; H01M12/00; H01M12/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
A THIN, FLAT, INDIVIDUAL CARBON DIFFUSER FOR USE IN GAS ACTIVATED BATTERIES COMPRISING A PRESSED FIBER MAT CONSISTING OF ABOUT TWO PARTS BY WEIGHT OF FINE GLASS FIBERS, ABOUT TWO PARTS BY WEIGHT OF VITREOUS ALUMINUM SILICATE FIBERS AND ABOUT ONE PART BY WEIGHT OF THIN ASBESTOS FIBERS, SAID MAT BEING IMPREGNATED WITH ABOUT ONE HALF PART BY WEIGHT OF FINELY DIVIDED CARBON AND REINFORCED BY AN INORGANIC BINDER CONSISTING ESSENTIALLY OF SODIUM SILICATE.
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) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |