US3005855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of cyclic hydrocarbons
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1959-05-28
•
Granted: 1961-10-24
•
Expires: 1979-05-28
Abstract
No abstract record available.
Inventors
- 👤 James P Keller
- 👤 Henry G Schutze
- 👤 Albert T Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:37
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/76; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/70; C07C2523/76; C07C2523/84; C07C2523/85; C07C2523/88; C07C2523/882
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A METHOD FOR PRODUCING CYCLIC HYDROCARBONS WHICH CONSISTS OF CONTACTING AN ACYCLIC DIOLEFIN HAVING 4 TO 5 CARBON ATOMS IN THE MOLECULE WITH A REDUCED COBALT MOLYBDATE CATALYST AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 400* TO ABOUT 500* F. TO FORM A PRODUCT CONTAINING SUBSTANTIAL AMOUNTS OF CYCLIC HYDROCARBONS, SAID CATALYST BEING REDUCED WITH HYDROGEN AT A TEMPERATURE OF ABOUT 1000* F. FOR ABOUT 16 HOURS.
Claim 2
Independent Claim
68 words
A METHOD FOR PRODUCING CYCLIC HYDROCARBONS WHICH CONSISTS OF CONTACTING AN ACYCLIC DIOLEFIN HAVING 4 TO 5 CARBON ATOMS IN THE MOLECULE WITH A REDUCED COBALT MOLYBDATE CATALYST AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 400* TO ABOUT 500* F. TO FORM A PRODUCT CONTAINING SUBSTANTIAL AMOUNTS OF CYCLIC HYDROCARBONS, SAID CATALYST BEING REDUCED WITH HYDROGEN AT A TEMPERATURE OF ABOUT 1000* F. FOR ABOUT 16 HOURS.
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) | 1964-10-23 | 1965-04-24 | 1965-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-23 | 1969-04-24 | 1969-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-23 | 1973-04-24 | 1973-10-24 | $7700.00 | Window Closed / Lapsed |