Patent US3081372A successfully refreshed from Google Patents.
US3081372A
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Heat sealable separator film
Assignee: Union Carbide Corp
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Filing: 1960-02-17
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Granted: 1963-03-12
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Expires: 1980-02-17
Abstract
No abstract record available.
Inventors
- 👤 Daniel G Soltis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:20
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M6/12; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/414; H01M50/429; H01M6/42; H01M6/46; H01M50/4295; H01M50/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A HEAT SEALABLE SEPARATOR FILM FOR USE IN CATHODIC ENVELOPE CELLS WHICH COMPRISES A FORMULATION OF APPROXIMATELY 35 TO 75% POLYETHYLENE OXIDE, 3 TO 6% WATER, AND THE REMAINDER METHYLCELLULOSE; SAID FORMULATION BEING CARRIED ON A PAPER SUPPORT.
Claim 2
Dependent Claim
38 words
A HEAT SEALABLE SEPARATOR FILM FOR USE IN CATHODIC ENVELOPE CELLS WHICH COMPRISES A FORMULATION OF APPROXIMATELY 35 TO 75% POLYETHYLENE OXIDE, 3 TO 6% WATER, AND THE REMAINDER METHYLCELLULOSE; SAID FORMULATION BEING CARRIED ON A PAPER SUPPORT.
References Cited (Backward Citations)
US2285095A
Cited
GB557218A
Cited
US2551799A
Cited
US2762858A
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US2870235A
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US2887522A
Cited
US2974538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |