Patent US3230225A successfully refreshed from Google Patents.
US3230225A
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Retarding polymerization of ethylenic compounds
Assignee: Universal Oil Products Co
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Filing: 1962-05-18
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Granted: 1966-01-18
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Expires: 1982-05-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph T Arrigo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:03
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/38; C07; C07C; C07C7/00; C07C7/20; Y; Y10; Y10S; Y10S585/00; Y10S585/949; Y10S585/952
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A METHOD OF STABILIZING AGAINST POLYMERIZATION A POLYMERIZABLE UNSATURATED MONOMER CONTAINING ANETHYLENIC LINKAGE WHICH COMPRISES INCORPORATING THEREIN FROM ABOUT 0.001% TO ABOUT 2% BY WEIGHT OF A SOLUBLE QUATERNARY AMMONIUM BOROYDRIDE OF THE FORMULA R4N:BH4 IN WHICH EACH R IS A HYDROCARBYL GROUP OF FROM 1 TO ABOUT 24 CARBON ATOMS AND THE TOTAL NUMBER OF CARBON ATOMS IN THE R GROUPS IS FROM ABOUT 10 TO 50.
Claim 2
Independent Claim
68 words
A METHOD OF STABILIZING AGAINST POLYMERIZATION A POLYMERIZABLE UNSATURATED MONOMER CONTAINING ANETHYLENIC LINKAGE WHICH COMPRISES INCORPORATING THEREIN FROM ABOUT 0.001% TO ABOUT 2% BY WEIGHT OF A SOLUBLE QUATERNARY AMMONIUM BOROYDRIDE OF THE FORMULA R4N:BH4 IN WHICH EACH R IS A HYDROCARBYL GROUP OF FROM 1 TO ABOUT 24 CARBON ATOMS AND THE TOTAL NUMBER OF CARBON ATOMS IN THE R GROUPS IS FROM ABOUT 10 TO 50.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |