US3694510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alaphatic polyaminoether compounds
Assignee: Bayer AG
•
Filing: 1969-10-20
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Granted: 1972-09-26
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Expires: 1989-10-20
Abstract
Abstract Amino compounds having the formula WHEREIN N IS 0 OR 1 AND THE R substituents, which may be the same or different, represent methyl or ethyl radicals, the R1 substituents representing hydrogen atoms or a hydrogen atom and a methyl, ethyl or RADICAL IN CASES WHERE N IS 0 BUT ONLY HYDROGEN ATOMS IN CASES WHERE N IS 1 MAY BE EMPLOYED IN THE CATALYZED POLYURETHANE FORMING REACTION BETWEEN COMPOUNDS CONTAINING HYDROGEN ATOMS REACTIVE WITH -NCO groups and organic polyisocyanates.
Inventors
- 👤 Friedrich Moller
- 👤 Gunter Hauptmann
- 👤 Heinz-Wolfgang Patzelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:50
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/18; C08G18/1833; Y; Y10; Y10S; Y10S521/00; Y10S521/914
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
8 words
The compound of claim 1 having the formula
Claim 2
Dependent Claim
8 words
The compound of claim 1 having the formula
Claim 3
Dependent Claim
8 words
The compound of claim 1 having the formula
References Cited (Backward Citations)
US2425628A
Cited
DE1030558B
Cited
US3129106A
Cited
DE1205548B
Cited
FR1426198A
Cited
US3480675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |