Patent US2294895A successfully refreshed from Google Patents.
US2294895A
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Copper powder
Assignee: Akzo Nobel Paints LLC
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Filing: 1940-07-15
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Granted: 1942-09-08
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Expires: 1960-07-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph E Drapeau
- 👤 Charles R Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:24
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/16; B22F9/18; B22F9/20; B22F9/22; B22F1/00; B22F1/17; Y; Y10; Y10S; Y10S29/00; Y10S29/031; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/936; Y10T; Y10T428/00; Y10T428/12; Y10T428/12181; Y10T428/12493; Y10T428/12708; Y10T428/12722
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) | 1945-09-07 | 1946-03-09 | 1946-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-09-07 | 1950-03-09 | 1950-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-09-07 | 1954-03-09 | 1954-09-08 | $7700.00 | Window Closed / Lapsed |