US2674642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery active material
Assignee: NL Industries Inc
•
Filing: 1953-12-24
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Granted: 1954-04-06
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Expires: 1973-12-24
Abstract
No abstract record available.
Inventors
- 👤 Agruss Bernard
- 👤 Finan Frank Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:31
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/56; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
ACTIVE MATERIAL FOR LEAD-ACID STORAGE BATTERIES COMPRISING AN INTIMATE MIXTURE OF LEAD OXIDE AND AN EFFECTIVE AMOUNT BETWEEN ABOUT 0.05% AND ABOUT 20.0% BY WEIGHT OF A HYDROPHILLIC SUBSTANCE CHARACTERIZED BY A WATER SORPTION CAPACITY OF AT LEAST 20 GRAMS OF WATER PER GRAM OF HYDROPHILIC SUBSTANCE, SAID AMOUNT OF HYDROPHILIC SUBSTANCE BEING EFFECTIVE TO PRODUCE PLASTIC, ADHESIVE ACTIVE MATERIAL PASTE WHEN MIXED WITH WATER IN PROPORTION OF 65 ML. TO 300 ML. OF WATER PER POUND OF MIXTURE.
Claim 2
Dependent Claim
79 words
ACTIVE MATERIAL FOR LEAD-ACID STORAGE BATTERIES COMPRISING AN INTIMATE MIXTURE OF LEAD OXIDE AND AN EFFECTIVE AMOUNT BETWEEN ABOUT 0.05% AND ABOUT 20.0% BY WEIGHT OF A HYDROPHILLIC SUBSTANCE CHARACTERIZED BY A WATER SORPTION CAPACITY OF AT LEAST 20 GRAMS OF WATER PER GRAM OF HYDROPHILIC SUBSTANCE, SAID AMOUNT OF HYDROPHILIC SUBSTANCE BEING EFFECTIVE TO PRODUCE PLASTIC, ADHESIVE ACTIVE MATERIAL PASTE WHEN MIXED WITH WATER IN PROPORTION OF 65 ML. TO 300 ML. OF WATER PER POUND OF MIXTURE.
References Cited (Backward Citations)
US1963468A
Cited
US2365600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |