US2162938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granular aluminum and method of making the same
Assignee: Tam Ceramics LLC
•
Filing: 1936-04-10
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Granted: 1939-06-20
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Expires: 1956-04-10
Abstract
No abstract record available.
Inventors
- 👤 George F Comstock
- 👤 Viatcheslav V Efimoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:13
CPC Classifications
C; C22; C22B; C22B5/00; C22B5/02; C22B5/04; B; B22; B22F; B22F9/00; B22F9/02; B22F9/06; B22F9/08; C22B5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-06-19 | 1942-12-19 | 1943-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-19 | 1946-12-19 | 1947-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-19 | 1950-12-19 | 1951-06-20 | $7700.00 | Window Closed / Lapsed |