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Patent US2773907A successfully refreshed from Google Patents.
US2773907A
Expired / Lapsed
US
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Tris-phenols
Assignee: Wyeth Holdings LLC
•
Filing: 1954-02-05
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Granted: 1956-12-11
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Expires: 1974-02-05
Abstract
No abstract record available.
Inventors
- 👤 Frank A V Sullivan
- 👤 Arnold R Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:33
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07C; C07C37/00; C07C37/11; C07C37/16; C07C39/00; C07C39/12; C07C39/15; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A COMPOUND CHARACTERIZED BY THE FORMULA:
Claim 2
Dependent Claim
6 words
A COMPOUND CHARACTERIZED BY THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |