Patent US3663426A successfully refreshed from Google Patents.
US3663426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Upgrading of reformate with a tellurium-faujasite catalyst
Assignee: Mobil Oil AS
•
Filing: 1969-11-14
•
Granted: 1972-05-16
•
Expires: 1989-11-14
Abstract
Abstract NAPHTHA IS REFORMED OVER A NOBLE METAL CATALYST TO EFFECT A DESIRED DEGREE OF NAPHTHENE AROMATIZATION AND THEN SUBJECTED TO A POST-REFORMING STEP IN WHICH PARAFFINS IN THE REFORMATE ARE AROMATIZED OVER A DEHYDROCYCLIZATION CATALYST.
Inventors
- 👤 Richard J Mikovsky
- 👤 Anthony J Silvestri
- 👤 Robert L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:12
CPC Classifications
C; C10; C10G; C10G59/00; C10G59/02; C10G35/00; C10G35/04; C10G35/06; C10G35/095; Y; Y10; Y10S; Y10S208/00; Y10S208/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |