US3468923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha,beta-unsaturated isocyanates
Assignee: BASF SE
•
Filing: 1962-05-23
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Granted: 1969-09-23
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Expires: 1982-05-23
Abstract
No abstract record available.
Inventors
- 👤 Karl-Heinz Koenig
- 👤 Horst Pommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:27
CPC Classifications
C; C07; C07D; C07D265/00; C07D265/28; C07D265/30; C07C; C07C263/00; C07C263/16; C07C265/00; C07C265/02; C07C265/04; C07C265/06; C07C265/08; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/728; C08G18/81; C08G18/8108
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
AN A,B-UNSATURATED ISOCYANATE OF THE FORMULA
Claim 2
Dependent Claim
6 words
AN A,B-UNSATURATED ISOCYANATE OF THE FORMULA
References Cited (Backward Citations)
US2245547A
Cited
US2334476A
Cited
US2706733A
Cited
US2694726A
Cited
US3041364A
Cited
FR1278456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |