Patent US3153013A successfully refreshed from Google Patents.
US3153013A
Expired / Lapsed
US
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Organic diisocyanates reacted with a phosphonic acid
Assignee: Monsanto Co
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Filing: 1961-01-06
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Granted: 1964-10-13
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Expires: 1981-01-06
Abstract
No abstract record available.
Inventors
- 👤 Charles H Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:58
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3878; C08G18/388; C08G73/00; Y; Y10; Y10S; Y10S528/00; Y10S528/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A PROCESS FOR PRODUCING A SYNTHETIC LINEAR POLYMER WHICH COMPRISES REACTING TOGETHER AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 0*C. TO 100*C. AND IN A SUBSTANTIALLY EQUIMOLECULAR QUANTITIES A MIXTURE OF A DIISOCYANATE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
39 words
A PROCESS FOR PRODUCING A SYNTHETIC LINEAR POLYMER WHICH COMPRISES REACTING TOGETHER AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 0*C. TO 100*C. AND IN A SUBSTANTIALLY EQUIMOLECULAR QUANTITIES A MIXTURE OF A DIISOCYANATE OF THE GENERAL 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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |