US4087257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High density-high volumetric heating value liquid ramjet
Assignee: United States Department of the Navy
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Filing: 1977-03-21
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Granted: 1978-05-02
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Expires: 1997-03-21
Abstract
Abstract A fuel consisting essentially of about 80 weight percent hydrogenated nornadiene dimer and about 20 weight percent of a butylbenzene has a balance among volumetric heat of combustion, viscosity and flash point such that the fuel is suitable for use in the Modern Ramjet Engine.
Inventors
- 👤 George W. Burdette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:30
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
22 words
A composition of matter consisting essentially of 80 ±1 weight percent hydrogenated norbornadiene dimer and 20 ±1 weight percent of a butylbenzene.
Claim 2
Dependent Claim
22 words
A composition of matter consisting essentially of 80 ±1 weight percent hydrogenated norbornadiene dimer and 20 ±1 weight percent of a butylbenzene.
Claim 3
Dependent Claim
13 words
A composition of matter according to claim 1 wherein the butylbenzene is iso-butylbenzene.
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) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |