US3190926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halogenated organic compounds
Assignee: Castrol Ltd
•
Filing: 1960-11-17
•
Granted: 1965-06-22
•
Expires: 1980-11-17
Abstract
No abstract record available.
Inventors
- 👤 Edwards Eric Descamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:07
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/321; C08G65/323; C08G65/3233; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/106; C10M2209/107; C10M2211/00; C10M2211/04; C10M2211/042; C10M2211/06; C10M2213/00; C10M2213/04; C10M2213/06; C10N; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/20; C10N2040/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A HALOGENATED POLYETHER CONTAINING FROM ABOUT 10% TO ABOUT 58% BY WEIGHT OF A HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE PREPARED BY REACTING A POLYETHER OF THE FORMULA
Claim 2
Dependent Claim
32 words
A HALOGENATED POLYETHER CONTAINING FROM ABOUT 10% TO ABOUT 58% BY WEIGHT OF A HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE PREPARED BY REACTING A POLYETHER OF THE FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |