Patent US2931003A successfully refreshed from Google Patents.
US2931003A
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Assignee: Duracell Inc USA
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Filing: 1955-09-27
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Granted: 1960-03-29
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Expires: 1975-09-27
Abstract
No abstract record available.
Inventors
- 👤 Huetten Clarence
- 👤 Myron E Hinebaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:13
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/36; H05K3/368; H05K7/00; H05K7/02; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/095; H05K2201/096; H05K2201/10; H05K2201/10227; H05K2201/10295; H05K2201/10303; H05K2201/10401; H05K2201/10613; H05K2201/10742; H05K2201/1075; H05K2201/10818; H05K2201/10833; H05K3/30; H05K3/306; H05K3/308
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2066876A
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US2515638A
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US2616994A
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US2593479A
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FR978844A
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US2650267A
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US2647990A
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US2740097A
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US2796559A
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US2752580A
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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) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |