Patent US2959595A successfully refreshed from Google Patents.
US2959595A
Expired / Lapsed
US
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4, 4'-thenylidene bis phenols
Assignee: Monsanto Chemicals Ltd
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Filing: 1957-12-16
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Granted: 1960-11-08
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Expires: 1977-12-16
Abstract
No abstract record available.
Inventors
- 👤 David J Beaver
- 👤 Richard O Zerbe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:01
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/16; C08; C08K; C08K5/00; C08K5/04; C08K5/13; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
AS A NEW COMPOSITIOIN OF MATTER A COMPOUND OF THE STRUCTURE
Claim 2
Dependent Claim
11 words
AS A NEW COMPOSITIOIN OF MATTER A COMPOUND OF THE STRUCTURE
References Cited (Backward Citations)
US2559932A
Cited
US2822404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |