US3122884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket motor
Assignee: Atlantic Research Corp
•
Filing: 1961-05-19
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Granted: 1964-03-03
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Expires: 1981-05-19
Abstract
No abstract record available.
Inventors
- 👤 John H Grover
- 👤 James R Macpherson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:14
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A ROCKET MOTOR FOR BURNING A SEMI-SOLID MONOPROPELLANT, COMPRISING A CASING HAVING A CLOSURE ACROSS ITS FORWARD END, A CLOSURE ACROSS ITS REARWARD END, AT LEAST ONE TRANSVERSE PARTITIONING MEMBER WHICH DIVIDES THE INTERIOR OF SAID CASING INTO A PLURALITY OF CHAMBERS FOR RECEIVING SEMI-SOLID MONOPROPELLANT WHEN SAID MOTOR IS IN UPRIGHT POSITION, SAID PARTITIONING MEMBER OPENING THERETHROUGH, SAID TUBULAR MEMBER TERMINATING AT ITS FORWARD END A POINT SPACED REARWARDLY OF THE FORWARD WALL OF THE CHAMBER IN WHICH SAID TUBULAR MEMBER IS SEATED, AND OPENING REARWARDLY INTO THE FORWARD PORTION OF THE NEXT ADJACENT REARWARD CHAMBER, AND AT LEAST ONE REARWARDLY-DIRECTED NOZZLE MEANS FOR VENTING THE COM-
Claim 2
Dependent Claim
108 words
A ROCKET MOTOR FOR BURNING A SEMI-SOLID MONOPROPELLANT, COMPRISING A CASING HAVING A CLOSURE ACROSS ITS FORWARD END, A CLOSURE ACROSS ITS REARWARD END, AT LEAST ONE TRANSVERSE PARTITIONING MEMBER WHICH DIVIDES THE INTERIOR OF SAID CASING INTO A PLURALITY OF CHAMBERS FOR RECEIVING SEMI-SOLID MONOPROPELLANT WHEN SAID MOTOR IS IN UPRIGHT POSITION, SAID PARTITIONING MEMBER OPENING THERETHROUGH, SAID TUBULAR MEMBER TERMINATING AT ITS FORWARD END A POINT SPACED REARWARDLY OF THE FORWARD WALL OF THE CHAMBER IN WHICH SAID TUBULAR MEMBER IS SEATED, AND OPENING REARWARDLY INTO THE FORWARD PORTION OF THE NEXT ADJACENT REARWARD CHAMBER, AND AT LEAST ONE REARWARDLY-DIRECTED NOZZLE MEANS FOR VENTING THE COM-
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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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |