US2994596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon liquids inhibited against corrosion
Assignee: ChampionX LLC
•
Filing: 1956-10-24
•
Granted: 1961-08-01
•
Expires: 1976-10-24
Abstract
No abstract record available.
Inventors
- 👤 Sterlin Aaron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:24
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/232; C07; C07D; C07D233/00; C07D233/04; C07D233/06; C07D233/08; C07D233/10; C07D233/12; C07D233/14; C07D233/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
A HYDROCARBON LIQUID CONTAINING WATER NORMALLY TENDING TO CAUSE CORROSION OF FERROUS METALS, SAID LIQUID CONTAINING A CORROSION INHIBITING AMOUNT OF SALT OF AN ORGANIC ALIPHATIC DICARBOXYLIC ACID CONTAINING AT LEAST 10 CARBON ATOMS IN A HYDROCARBON STRUCTURE AND A GLYOXALIDINE WHEREIN THE CARBON ATOM IN THE 2-POSITION IS LINKED TO A HIGHER ALIPHATIC HYDROCARBON GROUP CONTAINING AT LEAST 8 CARBON ATOMS, THE CARBON ATOM IN THE 4-POSITION IS LINKED TO A MEMBER FROM THE GROUP CONSISTING OF HYDROGEN AND LOWER ALIPHATIC HYDROCARBON GROUPS CONTAINING NOT MORE THAN 6 CARBON ATOMS, THE CARBON ATOM IN THE 5-POSITION IS LINKED TO A MEMBER FROM THE GROUP CONSISTING OF HYDROGEN AND LOWE ALIPHATIC HYDROCARBON GROUPS CONTAINING NOT MORE THAN 6 CARBON ATOMS, THERE BEING AT LEAST ONE HYDROGEN ATOM ON EACH OF THE CARBON ATOMS IN THE 4- AND 5-POSITIONS, AND THE NITROGEN ATOM IN THE 1-POSITION IS LINKED TO A MEMBER FROM THE GROUP CONSISTING OF HYDROGEN AND LOWER ALIPHATIC GROUPS CONTAINING NOT MORE THAN 6 CARBON ATOMS, SAID LAST NAMED LOWER ALIPHATIC GROUPS BEING COMPOSED OF ATOMS FROM THE GROUP CONSISTING OF HYDROGEN, CARBON, NITROGEN AND OXYGEN.
Claim 2
Dependent Claim
187 words
A HYDROCARBON LIQUID CONTAINING WATER NORMALLY TENDING TO CAUSE CORROSION OF FERROUS METALS, SAID LIQUID CONTAINING A CORROSION INHIBITING AMOUNT OF SALT OF AN ORGANIC ALIPHATIC DICARBOXYLIC ACID CONTAINING AT LEAST 10 CARBON ATOMS IN A HYDROCARBON STRUCTURE AND A GLYOXALIDINE WHEREIN THE CARBON ATOM IN THE 2-POSITION IS LINKED TO A HIGHER ALIPHATIC HYDROCARBON GROUP CONTAINING AT LEAST 8 CARBON ATOMS, THE CARBON ATOM IN THE 4-POSITION IS LINKED TO A MEMBER FROM THE GROUP CONSISTING OF HYDROGEN AND LOWER ALIPHATIC HYDROCARBON GROUPS CONTAINING NOT MORE THAN 6 CARBON ATOMS, THE CARBON ATOM IN THE 5-POSITION IS LINKED TO A MEMBER FROM THE GROUP CONSISTING OF HYDROGEN AND LOWE ALIPHATIC HYDROCARBON GROUPS CONTAINING NOT MORE THAN 6 CARBON ATOMS, THERE BEING AT LEAST ONE HYDROGEN ATOM ON EACH OF THE CARBON ATOMS IN THE 4- AND 5-POSITIONS, AND THE NITROGEN ATOM IN THE 1-POSITION IS LINKED TO A MEMBER FROM THE GROUP CONSISTING OF HYDROGEN AND LOWER ALIPHATIC GROUPS CONTAINING NOT MORE THAN 6 CARBON ATOMS, SAID LAST NAMED LOWER ALIPHATIC GROUPS BEING COMPOSED OF ATOMS FROM THE GROUP CONSISTING OF HYDROGEN, CARBON, NITROGEN AND OXYGEN.
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) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |