US3240009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-static additives for hydrocarbon oils
Assignee: Phillips Petroleum Co
•
Filing: 1962-03-23
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Granted: 1966-03-15
•
Expires: 1982-03-23
Abstract
No abstract record available.
Inventors
- 👤 Harold C Walters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:06
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C10L1/18; C10L1/192; C10L1/198; C10L1/1985; C10L1/22; C10L1/232
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
IN THE METHOD OF OPERATING A JET AIRCRAFT WHICH COMPRISES PASSING A HYDROCARBON FUEL HAVINGA REID VAPOR PRESSURE LESS THANT 5.0 AND BOILING BELOW 750*F. TO THE COMBUSTION ZONE OF SAID JET AIRCRAFT, THE STEP OF INCREASING THE ELECTICAL CONDUCTIVITY OF SAID HYDROCARBON FUEL TO AT LEAST 1X10**-11OHM**-1CM.**-1 BY THE ADDITION THERETO OF AN ADDITIVE SELECTED FROM THE GROUP CONSISTING OF HEMIN AND CHLOROPHYLL GROUP COMPOUNDS CONTAINING 4 PYRROLE NUCLEI.
Claim 2
Dependent Claim
70 words
IN THE METHOD OF OPERATING A JET AIRCRAFT WHICH COMPRISES PASSING A HYDROCARBON FUEL HAVINGA REID VAPOR PRESSURE LESS THANT 5.0 AND BOILING BELOW 750*F. TO THE COMBUSTION ZONE OF SAID JET AIRCRAFT, THE STEP OF INCREASING THE ELECTICAL CONDUCTIVITY OF SAID HYDROCARBON FUEL TO AT LEAST 1X10**-11OHM**-1CM.**-1 BY THE ADDITION THERETO OF AN ADDITIVE SELECTED FROM THE GROUP CONSISTING OF HEMIN AND CHLOROPHYLL GROUP COMPOUNDS CONTAINING 4 PYRROLE NUCLEI.
References Cited (Backward Citations)
FR842946A
Cited
GB518958A
Cited
US2445778A
Cited
BE510883A
Cited
BE507710A
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FR1074675A
Cited
GB776647A
Cited
GB848639A
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US3032971A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |