US3766086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyisocyanurate biuret surfactants
Assignee: Marathon Oil Co
•
Filing: 1971-06-28
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Granted: 1973-10-16
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Expires: 1991-06-28
Abstract
Abstract A MIXTURE OF MOLECULES CONTAINING ALL OF THE FOLLOWING GROUPS SHOW EMULSIFYING ABILITY: ISOCYANURATE, METAL ISOCYANURATE AND BIURET.
Inventors
- 👤 P Argabright
- 👤 C Wenger
- 👤 C Presley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:11
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/02; C08G18/022; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06; Y10S516/07; Y10S516/905; Y10S516/914
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |