Patent US2058489A successfully refreshed from Google Patents.
US2058489A
Expired / Lapsed
US
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Dye powder compositions
Assignee: National Aniline and Chemical Co Inc
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Filing: 1930-06-16
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Granted: 1936-10-27
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Expires: 1950-06-16
Abstract
No abstract record available.
Inventors
- 👤 Wilfred M Murch
- 👤 Frances M Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:57
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0077
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) | 1939-10-27 | 1940-04-27 | 1940-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-10-27 | 1944-04-27 | 1944-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-10-27 | 1948-04-27 | 1948-10-27 | $7700.00 | Window Closed / Lapsed |