US3468708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rechargeable dry cells and method of using same
Assignee: Wyeth Holdings LLC
•
Filing: 1966-02-23
•
Granted: 1969-09-23
•
Expires: 1986-02-23
Abstract
No abstract record available.
Inventors
- 👤 Stanley M Davis
- 👤 John D Voorhies
- 👤 Edward J Schurdak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:08
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1597165A
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US2836644A
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US3288642A
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US3040114A
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US3152017A
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US3185590A
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US3332802A
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US3260621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |