US3328207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin treated flexible battery separators
Assignee: Monsanto Co
•
Filing: 1965-12-30
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Granted: 1967-06-27
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Expires: 1985-12-30
Abstract
No abstract record available.
Inventors
- 👤 Raymond D Beaulieu
- 👤 Frank S O'connell
- 👤 Charles A Magarian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:15
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/429; H01M50/4295; H01M50/44; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A FLEXIBLE PERMEABLE CELLULOSIC FIBROUS BATTERY SEPARATOR WHEREIN THE CELLULOSIC FIABERS HAVE DEPOSITED THEREON 10-60 WEIGHT PERCENT BASED ON THE WEIGHT OF THE UNTREATED CELLULOSIC FIBERS OF A RESIN COMPOSITION COMPRISING IN ADMIXTURE 20-95 PARTS OF A PHENOL-ALDEHYDE RESIN AND 80-5 PARTS OF A ATHERMOPLASTIC RESIN WHICH THERMOPLASTIC RESIN IS SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS AND INTERPOLYMERS OF STYRENE WHEREIN THE INTERPOLYMERS CONTAIN AT LEAST 25 WEIGHT JPERCENT OF STYRENE WITH THE BALANCE BEING ANY MONOMERIC COMPOUND WHICH WILL INTERPOLYMERIZE WITH STYRENE AND WHICH INTERPOLYMERS DO NOT CONTAIN ANY CARBOXYL GROUPS, SAID PARTS OF RESINS BEING BASED ON THE TOTAL RESIN SOLIDS OF THE COMPOSITION.
Claim 2
Dependent Claim
107 words
A FLEXIBLE PERMEABLE CELLULOSIC FIBROUS BATTERY SEPARATOR WHEREIN THE CELLULOSIC FIABERS HAVE DEPOSITED THEREON 10-60 WEIGHT PERCENT BASED ON THE WEIGHT OF THE UNTREATED CELLULOSIC FIBERS OF A RESIN COMPOSITION COMPRISING IN ADMIXTURE 20-95 PARTS OF A PHENOL-ALDEHYDE RESIN AND 80-5 PARTS OF A ATHERMOPLASTIC RESIN WHICH THERMOPLASTIC RESIN IS SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS AND INTERPOLYMERS OF STYRENE WHEREIN THE INTERPOLYMERS CONTAIN AT LEAST 25 WEIGHT JPERCENT OF STYRENE WITH THE BALANCE BEING ANY MONOMERIC COMPOUND WHICH WILL INTERPOLYMERIZE WITH STYRENE AND WHICH INTERPOLYMERS DO NOT CONTAIN ANY CARBOXYL GROUPS, SAID PARTS OF RESINS BEING BASED ON THE TOTAL RESIN SOLIDS OF THE COMPOSITION.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |