US2622671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soot remover
Assignee: ChampionX LLC
•
Filing: 1949-07-07
•
Granted: 1952-12-23
•
Expires: 1969-07-07
Abstract
No abstract record available.
Inventors
- 👤 Carl E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:51
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/188; C10L1/1881
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A SOOT REMOVER CONCENTRATE COMPOSITION OF THE CHARACTER DESCRIBED COMPRISING A FUEL OIL AND AN OIL SOLUBLE COPPER SALT OF A BRANCH CHAIN ACYCLIC ALIPHATIC CARBOXYLIC ACID HAVING 5 TO 12 CARBON ATOMS, IN WHICH THE CARBOXYL GROUP IS ATTACHED TO A CARBON ATOM OTHER THAN THE CENTRAL CARBON ATOM IN THE LONGEST HYDROCARBON CHAIN, THE RELATIVE PROPORTION OF SAID COPPER SALT BEING WITHIN THE RANGE OF 0.5% TO 4% BY WEIGHT CALCULATED AS CU, OF SAID FUEL OIL.
Claim 2
Dependent Claim
79 words
A SOOT REMOVER CONCENTRATE COMPOSITION OF THE CHARACTER DESCRIBED COMPRISING A FUEL OIL AND AN OIL SOLUBLE COPPER SALT OF A BRANCH CHAIN ACYCLIC ALIPHATIC CARBOXYLIC ACID HAVING 5 TO 12 CARBON ATOMS, IN WHICH THE CARBOXYL GROUP IS ATTACHED TO A CARBON ATOM OTHER THAN THE CENTRAL CARBON ATOM IN THE LONGEST HYDROCARBON CHAIN, THE RELATIVE PROPORTION OF SAID COPPER SALT BEING WITHIN THE RANGE OF 0.5% TO 4% BY WEIGHT CALCULATED AS CU, OF SAID FUEL OIL.
References Cited (Backward Citations)
US2141848A
Cited
US2384551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |