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US2442972A
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Aqueous dispersions of electropositive materials
Assignee: Individual
•
Filing: 1941-01-23
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Granted: 1948-06-08
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Expires: 1961-01-23
Abstract
No abstract record available.
Inventors
- 👤 Sidney M Edelstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:33
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/46; C; C09; C09K; C09K23/00; C09K23/017; D06M23/00; D06P; D06P1/00; D06P1/44; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2206090A
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US2151788A
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US2302697A
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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) | 1951-06-08 | 1951-12-08 | 1952-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-08 | 1955-12-08 | 1956-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-08 | 1959-12-08 | 1960-06-08 | $7700.00 | Window Closed / Lapsed |