US3023254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrocyclization process
Assignee: Individual
•
Filing: 1958-01-23
•
Granted: 1962-02-27
•
Expires: 1978-01-23
Abstract
No abstract record available.
Inventors
- 👤 Donald F Othmer
- 👤 Denis K Huang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:47
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/373; C07C5/393; C07C5/41; C07C5/412; C07C5/415; C07C5/417; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
THE PROCESS OF DEHYDROCYCLIZATION OF TERTIARY CARBON ATOM FREE PARAFFINIC COMPOUNDS CONTAINING AT LEAST SIX CARBON ATOMS IN A STRAIGHT CHAIN COMPRISING REACTING SAID COMPOUNDS AT ABOUT ATMOSPHERIC PRESSURE AND AT FROM 840*F. TO 1100*F. IN THE PRESENCE OF PLATINUM AND A PROMOTER SELECTED FROM THE GROUP CONSISTING OF NEODYMIUM OXIDE AND DIDYMIUM OXIDE.
Claim 2
Dependent Claim
54 words
THE PROCESS OF DEHYDROCYCLIZATION OF TERTIARY CARBON ATOM FREE PARAFFINIC COMPOUNDS CONTAINING AT LEAST SIX CARBON ATOMS IN A STRAIGHT CHAIN COMPRISING REACTING SAID COMPOUNDS AT ABOUT ATMOSPHERIC PRESSURE AND AT FROM 840*F. TO 1100*F. IN THE PRESENCE OF PLATINUM AND A PROMOTER SELECTED FROM THE GROUP CONSISTING OF NEODYMIUM OXIDE AND DIDYMIUM OXIDE.
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) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |