US3368922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyelectrolyte membrane comprising a copolymer including acrylonitrile and fuel cell with same
Assignee: Monsanto Research Corp
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Filing: 1962-10-26
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Granted: 1968-02-13
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Expires: 1982-10-26
Abstract
No abstract record available.
Inventors
- 👤 Ival O Salyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:14
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/22; C; C08; C08J; C08J5/00; C08J5/20; C08J5/22; C08J5/2206; C08J5/2218; C08J5/2231; H01M8/10; H01M8/1016; H01M8/1018; H01M8/102; H01M8/1023; H01M8/1069; H01M8/1083; H01M8/1086; H01M8/1088; C08J2323/00; C08J2323/02; C08J2323/04; C08J2333/00; C08J2333/04; C08J2333/06; C08J2333/10; C08J2333/12; H01M8/1007; H01M8/1009; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/50; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
102 words
A SOLID MEMBRANEOUS POLYELECTROLYTE OBTAINED BY MOLDING, AT A TEMPERATURE OF FROM 50*C. TO 200*C. AND A PRESSURE OF 100 TO 10,000 P.S.I. AND IN THE PRESENCE OF A PEROXIDIC FREE-RADICAL-LIBERATING AGENT, A COPOLYMER OF AN ALIPHATIC MONO-OLEFINIC HYDROCARBON OR FROM 2 TO 4 CARBON ATOMS WITH ACRYLONITRILE OR WITH AN ALKYL ACRYLATE HAVING FROM 1 TO 4 CARBON ATOMS IN THE ALKYK, SAID COPOLYMER CONSISTING FROM 15 TO 85% BY WEIGHT OF THE MOMO-OLEFINIC HYDROCARBON AND SAID PEROXIDIC AGENT BEING PERSENT IN A QUANTIITY OF FROM 0.5% TO 15% BY WEIGHT OF THE COPOLYMER, AND SUBSEQUENTLY HYDROLYZING THE RESULTING MOLDED PRODUCT.
Claim 2
Dependent Claim
102 words
A SOLID MEMBRANEOUS POLYELECTROLYTE OBTAINED BY MOLDING, AT A TEMPERATURE OF FROM 50*C. TO 200*C. AND A PRESSURE OF 100 TO 10,000 P.S.I. AND IN THE PRESENCE OF A PEROXIDIC FREE-RADICAL-LIBERATING AGENT, A COPOLYMER OF AN ALIPHATIC MONO-OLEFINIC HYDROCARBON OR FROM 2 TO 4 CARBON ATOMS WITH ACRYLONITRILE OR WITH AN ALKYL ACRYLATE HAVING FROM 1 TO 4 CARBON ATOMS IN THE ALKYK, SAID COPOLYMER CONSISTING FROM 15 TO 85% BY WEIGHT OF THE MOMO-OLEFINIC HYDROCARBON AND SAID PEROXIDIC AGENT BEING PERSENT IN A QUANTIITY OF FROM 0.5% TO 15% BY WEIGHT OF THE COPOLYMER, AND SUBSEQUENTLY HYDROLYZING THE RESULTING MOLDED PRODUCT.
Claim 3
Dependent Claim
26 words
A FUEL CELL COMPRISING A PAIR OF SPACED ELECTRODES IN ELECTRICAL CONTACT WITH EACH OTHER THROUGH THE MEMBRANEOUS POLYELECTROLYTE OF CLAIM 1 INTERPOSED BETWEEN SAID ELECTRODES.
References Cited (Backward Citations)
US2681320A
Cited
US2831045A
Cited
US2913511A
Cited
US2933547A
Cited
US2950503A
Cited
US2972170A
Cited
US3089897A
Cited
US3198776A
Cited
US3051992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |