Patent US2621147A successfully refreshed from Google Patents.
US2621147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sweetening and stabilizing hydrocarbon oils
Assignee: Texaco Inc
•
Filing: 1951-09-22
•
Granted: 1952-12-09
•
Expires: 1971-09-22
Abstract
No abstract record available.
Inventors
- 👤 Johan C D Oosterhout
- 👤 Jr Thomas C Roddy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:22
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/06; C10G27/00; C10G27/04; C10G27/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
THE METHOD OF TREATING HYDROCARBON OILS CONTAINING MERCAPTAN SULFUR TO EFFECT SIMULTANEOUS SWEETENING THEREOF AND STABILIZATION AGAINST OXIDATION THAT COMPRISES CONTACTING THE OIL WITH AN ORGANIC METAL SALT, A PARAPHENYLENEDIAMINE AND AN N-SALICYLALAMINO ALKANE TO SUBJECT THE OIL TO THE COMBINED ACTION OF SAID CONTACTING MATERIAL.
Claim 2
Independent Claim
46 words
THE METHOD OF TREATING HYDROCARBON OILS CONTAINING MERCAPTAN SULFUR TO EFFECT SIMULTANEOUS SWEETENING THEREOF AND STABILIZATION AGAINST OXIDATION THAT COMPRISES CONTACTING THE OIL WITH AN ORGANIC METAL SALT, A PARAPHENYLENEDIAMINE AND AN N-SALICYLALAMINO ALKANE TO SUBJECT THE OIL TO THE COMBINED ACTION OF SAID CONTACTING MATERIAL.
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) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |