US4007215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-(Bis-ethoxycarbonyl)-acetylamino-3-methyl-3-(bis-ethoxycarbonyl)-acetylaminomethyl-5-dimethyl-cyclohexane
Assignee: BASF SE
•
Filing: 1975-07-07
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Granted: 1977-02-08
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Expires: 1995-07-07
Abstract
Abstract 1-(Bis-ethoxycarbonyl)-acetylamino-3-methyl-3-(bis-ethoxycarbonyl)-acetylaminomethyl-5-dimethyl-cyclohexane, a new blocked diisocyanate, its manufacture from isophorone diisocyanate and diethyl malonate, and its use.
Inventors
- 👤 Heinrich Hartmann
- 👤 Wolfgang Druschke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:14
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; C08G18/8093; Y; Y10; Y10S; Y10S528/00; Y10S528/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
The compound of the formula ##STR3##
Claim 2
Dependent Claim
6 words
The compound of the formula ##STR3##
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-08 | 1980-08-09 | 1981-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-08 | 1984-08-09 | 1985-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-08 | 1988-08-09 | 1989-02-08 | $7700.00 | Window Closed / Lapsed |