Patent US2378276A successfully refreshed from Google Patents.
US2378276A
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US
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Stabilization of coloring compositions, containing diazonium salts
Assignee: Wyeth Holdings LLC
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Filing: 1943-07-05
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Granted: 1945-06-12
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Expires: 1963-07-05
Abstract
No abstract record available.
Inventors
- 👤 Frederic H Adams
- 👤 William B Hardy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:12
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/62; D06P1/621; D06P1/622; D06P1/626; D06P1/02; D06P1/12; D06P1/64; D06P1/651; D06P1/65106; D06P1/65125; D06P1/65168
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) | 1948-06-11 | 1948-12-11 | 1949-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-06-11 | 1952-12-11 | 1953-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-06-11 | 1956-12-11 | 1957-06-12 | $7700.00 | Window Closed / Lapsed |