US3214386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for synthesis of mercaptans
Assignee: Phillips Petroleum Co
•
Filing: 1963-08-19
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Granted: 1965-10-26
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Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 Paul F Warner
- 👤 Richard D Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:32
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A CATALYST CONSISTING ESSENTIALLY OF LIQUID COMPLEX OF AN ACID OF THE GROUP CONSISTING OF H3PO4 AND H3PO3, AN ALCOHOL OF 1 TO 5 CARBON ATOMS, AND BF3, SAID COMPLEX CONTAINING SUBSTANTIAL AND CATALYTICALLY EFFECTIVE PROPORTIONS OF EACH NAMED COMPONENT.
Claim 2
Dependent Claim
40 words
A CATALYST CONSISTING ESSENTIALLY OF LIQUID COMPLEX OF AN ACID OF THE GROUP CONSISTING OF H3PO4 AND H3PO3, AN ALCOHOL OF 1 TO 5 CARBON ATOMS, AND BF3, SAID COMPLEX CONTAINING SUBSTANTIAL AND CATALYTICALLY EFFECTIVE PROPORTIONS OF EACH NAMED COMPONENT.
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |