Patent US2419296A successfully refreshed from Google Patents.
US2419296A
Expired / Lapsed
US
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Fibrous sheet material for the electrolytic formation of an azo dyestuff thereon
Assignee: RCA Corp
•
Filing: 1942-12-23
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Granted: 1947-04-22
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Expires: 1962-12-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:46
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/20; Y; Y10; Y10S; Y10S534/00; Y10S534/01
Claims Analysis
Total Claims: 0
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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) | 1950-04-21 | 1950-10-21 | 1951-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-21 | 1954-10-21 | 1955-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-21 | 1958-10-21 | 1959-04-22 | $7700.00 | Window Closed / Lapsed |