US3362932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyalkylene oxides stabilized with a combination of thio-bisphenols and aliphatic sulfides
Assignee: Hoechst AG
•
Filing: 1964-12-08
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Granted: 1968-01-09
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Expires: 1984-12-08
Abstract
No abstract record available.
Inventors
- 👤 Mauz Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:05
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/36; C08K5/37; C08K5/372
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A COMPOSITION OF MATTER COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF ALKYLENE OXIDES AND COPOLYMERS OF SATURATED EPOXIDES WITH UNSATURATED EPOXIDES AND A STABILIZING AMOUNT OF A MIXTURE COMPRISING (A) A BISPHENOL OF THE FORMULA
Claim 2
Dependent Claim
39 words
A COMPOSITION OF MATTER COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF ALKYLENE OXIDES AND COPOLYMERS OF SATURATED EPOXIDES WITH UNSATURATED EPOXIDES AND A STABILIZING AMOUNT OF A MIXTURE COMPRISING (A) A BISPHENOL OF THE FORMULA
References Cited (Backward Citations)
US2942033A
Cited
US2706189A
Cited
US2945837A
Cited
DE1117868B
Cited
GB971262A
Cited
US3157626A
Cited
US3204014A
Cited
US3240753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |