Patent US3384481A successfully refreshed from Google Patents.
US3384481A
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Method of forming composites of thermally unstable materials
Assignee: Duracell Inc USA
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Filing: 1967-07-06
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Granted: 1968-05-21
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Expires: 1987-07-06
Abstract
No abstract record available.
Inventors
- 👤 Broverman Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:19
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/10; C22C1/1084; B; B22; B22F; B22F7/00; B22F7/06; B22F7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2929707A
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US2814564A
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US3024110A
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GB879590A
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GB925142A
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US3078553A
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GB944319A
Cited
US3218697A
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US3269804A
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US3276867A
Cited
US3328139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |