Patent US2557020A successfully refreshed from Google Patents.
US2557020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of sulfur in the suppression of carburizing in gas turbine and jet propulsion engines
Assignee: Standard Oil Development Co
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Filing: 1946-04-26
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Granted: 1951-06-12
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Expires: 1966-04-26
Abstract
No abstract record available.
Inventors
- 👤 Prentiss S Viles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:14
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/007; F01D25/002; F02; F02C; F02C3/00; F02C3/20; F02C3/30; F02C7/00; F02C7/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN A METHOD FOR SUPPRESSING CARBON FORMATION AND CARBURIZATION OF ATTENDANT METALLIC PARTS IN GAS TURBINE AND JET PROPULSION ENGINE COMBUSTION ZONES DURING OPERATION THEREOF WHICH INCLUDES THE STEPS OF CONTINUOUSLY INTRODUCING COMPRESSED OXYGEN-CONTAINING GAS AND A LIQUID HYDROCARBON FUEL INTO SAID COMBUSTION ZONE, IGNITING SAID FUEL TO FORM COMBUSTION GASES AND JETTING SAID COMBUSTION GASES THROUGH AT LEAST ONE ROTATABLE TURBINE AND OUTLET, THE STEP OF CON-
Claim 2
Dependent Claim
68 words
IN A METHOD FOR SUPPRESSING CARBON FORMATION AND CARBURIZATION OF ATTENDANT METALLIC PARTS IN GAS TURBINE AND JET PROPULSION ENGINE COMBUSTION ZONES DURING OPERATION THEREOF WHICH INCLUDES THE STEPS OF CONTINUOUSLY INTRODUCING COMPRESSED OXYGEN-CONTAINING GAS AND A LIQUID HYDROCARBON FUEL INTO SAID COMBUSTION ZONE, IGNITING SAID FUEL TO FORM COMBUSTION GASES AND JETTING SAID COMBUSTION GASES THROUGH AT LEAST ONE ROTATABLE TURBINE AND OUTLET, THE STEP OF CON-
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) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |