Patent US3401204A successfully refreshed from Google Patents.
US3401204A
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Hydrocarbylene-bis (monophosphobicyclononanes) and the preparation thereof
Assignee: Shell USA Inc
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Filing: 1965-11-26
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Granted: 1968-09-10
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Expires: 1985-11-26
Abstract
No abstract record available.
Inventors
- 👤 Ronald F Mason
- 👤 John L Van Winkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:23
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6568; C07F9/65683; B; B01; B01J; B01J31/00; B01J31/16; B01J31/20; B01J31/24; B01J31/2404; B01J31/2409; B01J31/2414; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/321; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/845
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
HYDROCARBYLENE - BIS(MONOPHOSPHABICYCLONONANES) IN WHICH EACH PHOSPHORUS ATOM IS JOINED TO HYDROCARBYLENE AND IS A MEMBER OF A BRIDGE LINKAGE WITHOUT BEING A BRIDGEHEAD ATOM AND WHICH HYDROCARBYLENE-BIS(MONOPHOSPHABICYCLONONANE) HAS 18 TO 50 CARBON ATOMS, 8 CARBON ATOMS THEREOF TOGETHER WITH A PHOSPHORUS ATOM BEING MEMBERS OF EACH OF THE TWO BICYCLIC SKELETAL STRUCTURES.
Claim 2
Dependent Claim
53 words
HYDROCARBYLENE - BIS(MONOPHOSPHABICYCLONONANES) IN WHICH EACH PHOSPHORUS ATOM IS JOINED TO HYDROCARBYLENE AND IS A MEMBER OF A BRIDGE LINKAGE WITHOUT BEING A BRIDGEHEAD ATOM AND WHICH HYDROCARBYLENE-BIS(MONOPHOSPHABICYCLONONANE) HAS 18 TO 50 CARBON ATOMS, 8 CARBON ATOMS THEREOF TOGETHER WITH A PHOSPHORUS ATOM BEING MEMBERS OF EACH OF THE TWO BICYCLIC SKELETAL STRUCTURES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |