Patent US3331684A successfully refreshed from Google Patents.
US3331684A
Expired / Lapsed
US
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Method of forming porous aluminum strip
Assignee: Alloys Research and Manufacturing Corp
•
Filing: 1965-01-26
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Granted: 1967-07-18
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Expires: 1985-01-26
Abstract
No abstract record available.
Inventors
- 👤 Storchheim Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:12
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1988861A
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US2134366A
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US2155651A
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US2332746A
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US2341732A
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US2386544A
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US2746741A
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US3144330A
Cited
US3194858A
Cited
US3290145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |