US3448172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexibilized polyester resin compositions containing polyurethanes modified with vinyl monomers and process therefor
Assignee: Wyandotte Chemicals Corp
•
Filing: 1966-12-08
•
Granted: 1969-06-03
•
Expires: 1986-12-08
Abstract
No abstract record available.
Inventors
- 👤 Adolfas Damusis
- 👤 Kurt C Frisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:48
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/06; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/671; C08L75/00; C08L75/04; C08L75/14; C08L75/16; Y; Y10; Y10S; Y10S525/00; Y10S525/92
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA609570A
Cited
GB610140A
Cited
GB754604A
Cited
US3047530A
Cited
US2879250A
Cited
US2915493A
Cited
US3100759A
Cited
US3386962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |