US3248362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of polyaldehydes with triarylphosphines
Assignee: Monsanto Co
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Filing: 1962-10-18
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Granted: 1966-04-26
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Expires: 1982-10-18
Abstract
No abstract record available.
Inventors
- 👤 Perry Eli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:41
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A THERMALLY-STABILIZED POLYMERIC COMPOSITION COMPRISING A HIGH POLYMER OF AN ALIPHATIC SATURATED ALDEHYDE HAVING FROM 2 TO 10 CARBON ATOMS AND FROM ABOUT 0.01% TO ABOUT 15% BY WEIGHT OF SAID POLYMER OF A TRIARYLPHOSPHINE IN WHICH THE ARYL GROUPS CONTAIN FROM 6 TO 12 CARBON ATOMS.
Claim 2
Dependent Claim
47 words
A THERMALLY-STABILIZED POLYMERIC COMPOSITION COMPRISING A HIGH POLYMER OF AN ALIPHATIC SATURATED ALDEHYDE HAVING FROM 2 TO 10 CARBON ATOMS AND FROM ABOUT 0.01% TO ABOUT 15% BY WEIGHT OF SAID POLYMER OF A TRIARYLPHOSPHINE IN WHICH THE ARYL GROUPS CONTAIN FROM 6 TO 12 CARBON ATOMS.
References Cited (Backward Citations)
US2816876A
Cited
US3039999A
Cited
US2981716A
Cited
GB851974A
Cited
US3119789A
Cited
US3065210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |