Patent US3618461A successfully refreshed from Google Patents.
US3097482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ngham
Assignee: —
•
Filing: —
•
Granted: 1963-07-16
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Expires: 1980-07-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:48
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/50; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1647; Y10T137/1692; Y10T137/1714
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
A PROPELLANT INJECTOR FOR LIQUID PROPELLANT ROCKET POWERPLANTS INCLUDING A PROPELLANT TANK AND A COMBUSTION CHAMBER COMMUNICATING THEREWITH COMPRISING A PROPELLANT INJECTOR PLATE INCLUDING AN INJECTION NOZZLE FOR PERMITTING FLOW OF PROPELLANT TO THE COMBUSTION CHAMBER, A SHEAR CUP PROJECTING FROM THE PLATE AND SEALING OFF FLOW THROUGH THE NOZZLE, AND ROTATABLE MEANS MOUNTED ADJACENT THE INJECTOR PLATE AND OPERATIVE UPON ROTATION TO SHEAR OFF THE CUP AND ADMIT PROPELLANT TO THE COMBUSTION CHAMBER.
References Cited (Backward Citations)
US2954670A
Cited
US2940256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |