Patent US3361837A successfully refreshed from Google Patents.
US3361837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicyclization
Assignee: Phillips Petroleum Co
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Filing: 1965-10-18
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Granted: 1968-01-02
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Expires: 1985-10-18
Abstract
No abstract record available.
Inventors
- 👤 Paul R Stapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:01
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A METHOD COMPRISING CONTACTING UNDER BICYCLIZATION CONDITIONS AT LEAST ONE OF 4-VINYLCYCLOHEXENE AND ALKYL SUBSTITUTED DERIVATIVES THEREOF, WHEREIN THE ALKYL RADICALS HAVE FROM 1 TO 8 CARBONS ATOMS, WITH A CATALYST FORMED ON ADMIXING ONE OF CERIUM CHLORIDE, CERIUM BROMIDE, AND CERIUM IODIDE, WITH LITHIUM ALUMINUM HYDRIDE.
Claim 2
Independent Claim
47 words
A METHOD COMPRISING CONTACTING UNDER BICYCLIZATION CONDITIONS AT LEAST ONE OF 4-VINYLCYCLOHEXENE AND ALKYL SUBSTITUTED DERIVATIVES THEREOF, WHEREIN THE ALKYL RADICALS HAVE FROM 1 TO 8 CARBONS ATOMS, WITH A CATALYST FORMED ON ADMIXING ONE OF CERIUM CHLORIDE, CERIUM BROMIDE, AND CERIUM IODIDE, WITH LITHIUM ALUMINUM HYDRIDE.
References Cited (Backward Citations)
US2953531A
Cited
US3274271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |