US3440230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained,curable resins prepared by reacting organic isocyanates and epoxy alcohols
Assignee: Phillips Petroleum Co
•
Filing: 1966-05-02
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Granted: 1969-04-22
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Expires: 1986-05-02
Abstract
No abstract record available.
Inventors
- 👤 Richard C Doss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:55
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/16; C08G18/00; C08G18/06; C08G18/28; C08G18/2805; C08G18/2815; C08G18/2845
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3042692A
Cited
US2830038A
Cited
US3025160A
Cited
US3020262A
Cited
US3010940A
Cited
US3317471A
Cited
US3316220A
Cited
GB1045804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |