US3447968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical energy storage device and method of storing electrical energy
Assignee: Standard Oil Co
•
Filing: 1966-06-30
•
Granted: 1969-06-03
•
Expires: 1986-06-30
Abstract
No abstract record available.
Inventors
- 👤 Robert A Rightmire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:41
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/16; G10K11/161; F; F24; F24F; F24F13/00; F24F13/24; F24F8/00; F24F8/10; H; H01; H01G; H01G7/00; H01G7/02; H01M; H01M10/00; H01M10/36; H01M10/39; H01M10/399; H01M14/00; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3238437A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |