US2718535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroisomerization of hydrocarbons
Assignee: Gulf Research and Development Co
•
Filing: 1952-03-18
•
Granted: 1955-09-20
•
Expires: 1972-03-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Mckinley
- 👤 Robert E Kline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:31
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/2705; C07C5/2767; C07C5/277; C07C5/2772
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A PROCESS FOR HYDROISOMERIZING SATURATED HYDROCARBONS WHICH COMPRISES CONTACTING SAID HYDROCARBONS
Claim 2
Dependent Claim
11 words
A PROCESS FOR HYDROISOMERIZING SATURATED HYDROCARBONS WHICH COMPRISES CONTACTING SAID HYDROCARBONS
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) | 1958-09-19 | 1959-03-21 | 1959-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-19 | 1963-03-21 | 1963-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-19 | 1967-03-21 | 1967-09-20 | $7700.00 | Window Closed / Lapsed |