US3457113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminar electrode including hydrophobic and hydrophilic layfrs; method of making; fuel cell therewith; and method of using fuel cell
Assignee: Monsanto Research Corp
•
Filing: 1965-03-01
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Granted: 1969-07-22
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Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 Max C Deibert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:30
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/75; H01M4/86; H01M4/8663; H01M4/8668; H01M4/88; H01M4/8825; H01M4/8828; H01M4/8875; H01M4/8878; H01M4/8882; H01M4/96; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2824165A
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US3276909A
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US3297484A
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US3158510A
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US3262817A
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US3252839A
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US3281511A
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US3318736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |