US3600358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane-urea elastomers prepared from 4,4'-methylene bis (cyclohexyl-isocyanate),neopentyl adipate and an aromatic diamine
Assignee: Honeywell International Inc
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Filing: 1969-01-28
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Granted: 1971-08-17
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Expires: 1989-01-28
Abstract
Abstract POLYURETHANE ELASTOMERS HAVING IMPROVED HYDROLYTIC STABILITY ARE PREPARED FROM 4,4''-METHYLENE BIS(CHCLOHEXYLISOCYANATE), NEOPENTYL ADIPATE POLYESTER AND AN AROAMTIC DIAMINE.
Inventors
- 👤 Bernard Taub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:49
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/75; C08G18/758; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/42; C08G18/4236; C08G18/4238; Y; Y10; Y10S; Y10S528/00; Y10S528/906
Claims Analysis
Total Claims: 0
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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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |