US3400156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triaminotriphenylaminium salts
Assignee: Wyeth Holdings LLC
•
Filing: 1966-01-27
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Granted: 1968-09-03
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Expires: 1986-01-27
Abstract
No abstract record available.
Inventors
- 👤 Millionis Jerry Peter
- 👤 Susi Peter Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:54
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/22; G02B5/223; C; C03; C03C; C03C17/00; C03C17/28; C08; C08K; C08K5/00; C08K5/0008; C08K5/16; C08K5/17; C08K5/18; C08K5/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3253035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |