Patent US3068081A successfully refreshed from Google Patents.
US3068081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abietic acid and salts as inhibitors
Assignee: Individual
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Filing: 1954-06-29
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Granted: 1962-12-11
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Expires: 1974-06-29
Abstract
No abstract record available.
Inventors
- 👤 Karl F Hager
- 👤 Rosenthal Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:34
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/149; C23F11/12; C23F11/124; C23F11/126
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
THE METHOD OF PROTECTING METALLIC SURFACES OF IRON ALUMINUM AND MAGNESIUM AND THEIR ALLOYS FROM THE CORROSIVE ACTION OF FUELS, SAID FUELS CONSISTING ESSENTIALLY OF, AND SELECTED FROM THE GROUP CONSISTING OF, AQUEOUS SOLUTIONS OF ETHYL ALCOHOL AND AQUEOUS SOLUTIONS OF ACETONE, WHICH CONSISTS OF ADDING TO SAID SOLUTIONS FROM ABOUT 0.1% TO ABOUT .25% BY WEIGHT OF AN INHIBITING AGENT CONSISTING OF WATER SOLUBLE NITROGEN-CONTAINING SALTS OF ABIETIC ACID, TREATING SAID SURFACES WITH SAID INHIBITING AGENT CON TAINED IN SAID SOLUTIONS TO PRODUCE AN INHIBITING ACTION BY SAID AGENT UPON SAID SURFACES, WHEREBY SAID SURFACES ARE RENDERED SUBSTANTIALLY INACTIVE WITH RESPECT TO THE NORMAL CORROSIVE ACTION OF SAID AQUEOUS SOLUTIONS. 7.A FUEL CONSISTING ESSENTIALLY OF AND SELECTED FROM THE GROUP CONSISTING OF AQUEOUS SLOUTIONS OF ETHYL ALCOHOL AND AQUEOUS SOLUTIONS OF ACETONE NORMALLY CORROSIVE TO METAL SURFACES, AND FROM ABOUT 0.1% TO ABOUT 0.25% BY WEIGHT OF A CORROSION INHIBITING AGENT CONSISTING WATER-SOLUBLE NITROGEN-CONTAINING SALTS OF ABIETIC ACID.
Claim 2
Independent Claim
159 words
THE METHOD OF PROTECTING METALLIC SURFACES OF IRON ALUMINUM AND MAGNESIUM AND THEIR ALLOYS FROM THE CORROSIVE ACTION OF FUELS, SAID FUELS CONSISTING ESSENTIALLY OF, AND SELECTED FROM THE GROUP CONSISTING OF, AQUEOUS SOLUTIONS OF ETHYL ALCOHOL AND AQUEOUS SOLUTIONS OF ACETONE, WHICH CONSISTS OF ADDING TO SAID SOLUTIONS FROM ABOUT 0.1% TO ABOUT .25% BY WEIGHT OF AN INHIBITING AGENT CONSISTING OF WATER SOLUBLE NITROGEN-CONTAINING SALTS OF ABIETIC ACID, TREATING SAID SURFACES WITH SAID INHIBITING AGENT CON TAINED IN SAID SOLUTIONS TO PRODUCE AN INHIBITING ACTION BY SAID AGENT UPON SAID SURFACES, WHEREBY SAID SURFACES ARE RENDERED SUBSTANTIALLY INACTIVE WITH RESPECT TO THE NORMAL CORROSIVE ACTION OF SAID AQUEOUS SOLUTIONS. 7.A FUEL CONSISTING ESSENTIALLY OF AND SELECTED FROM THE GROUP CONSISTING OF AQUEOUS SLOUTIONS OF ETHYL ALCOHOL AND AQUEOUS SOLUTIONS OF ACETONE NORMALLY CORROSIVE TO METAL SURFACES, AND FROM ABOUT 0.1% TO ABOUT 0.25% BY WEIGHT OF A CORROSION INHIBITING AGENT CONSISTING WATER-SOLUBLE NITROGEN-CONTAINING SALTS OF ABIETIC ACID.
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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |