US3882203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon-peroxy hydrocarbon phosphonates
Assignee: Chevron Belgium NV
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Filing: 1972-09-25
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Granted: 1975-05-06
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Expires: 1992-09-25
Abstract
Abstract (Hydrocarbon-peroxy hydrocarbon) phosphonates, useful as polymerization initiators, may be prepared by the reaction of a hydroperoxide with a phosphonate of an unsaturated hydrocarbon.
Inventors
- 👤 Lothar G Dulog
- 👤 Willy P Broeckx
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:04
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/5333; C07; C07C; C07C2/00; C07C2/76; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C07F9/44; C07F9/4403; C07F9/4407; C08F; C08F4/00; C08F4/28; C08F4/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3267066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |