Patent US3397638A successfully refreshed from Google Patents.
US3397638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket launcher
Assignee: MBAssociates Corp
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Filing: 1961-03-08
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Granted: 1968-08-20
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Expires: 1981-03-08
Abstract
No abstract record available.
Inventors
- 👤 Bert B Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:39
CPC Classifications
F; F42; F42B; F42B15/00; F42B15/36; F42B12/00; F42B12/02; F42B12/36; F42B12/56; F42B12/58; F42B12/62; F42B12/625; Y; Y10; Y10S; Y10S102/00; Y10S102/703
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN A MULTIPLE STAGE COMPARTMENTIZED ROCKET HAVING A FIRST STAGE AFT COMPARTMENT PORTION PROVIDED WITH A PROPELLANT GRAIN AND A SECOND STAGE FORWARD COMPARTMENT PORTION SEPARATED THEREFROM BY A SUBSTANTIALLY IMPERFORATE TRANSVERSELY EXTENDING WALL, A PLURALITY OF LONGITUDINALLY EXTENDING ROCKETS IN SAID SECOND STAGE FORWARD COMPARTMENT ARRANGED FOR FIRING THROUGH SAID FIRST STAGE AFT COMPARTMENT PORTION IN A DIRECTION OPPOSED TO THE TRAVEL OF THE ROCKET CREATED BY THE FIRING OF THE FIRST STAGE PORTION, THE COMBINATION INCLUDING A BURNABLE FUSE MEANS EXTENDING FORWARDLY FROM THE FIRST STAGE AFT PORTION AND CONNECTED TO THE ROCKETS IN THE SECOND STAGE FORWARD PORTION, SAID FUSE MEANS BEING ARRANGED TO BE IGNITED ONLY AFTER THE PROPELLANT GRAIN IN THE AFT PORTION IS BURNING IN THE AREA ADJACENT TO THE IMPERFORATE WALL.
Claim 2
Dependent Claim
128 words
IN A MULTIPLE STAGE COMPARTMENTIZED ROCKET HAVING A FIRST STAGE AFT COMPARTMENT PORTION PROVIDED WITH A PROPELLANT GRAIN AND A SECOND STAGE FORWARD COMPARTMENT PORTION SEPARATED THEREFROM BY A SUBSTANTIALLY IMPERFORATE TRANSVERSELY EXTENDING WALL, A PLURALITY OF LONGITUDINALLY EXTENDING ROCKETS IN SAID SECOND STAGE FORWARD COMPARTMENT ARRANGED FOR FIRING THROUGH SAID FIRST STAGE AFT COMPARTMENT PORTION IN A DIRECTION OPPOSED TO THE TRAVEL OF THE ROCKET CREATED BY THE FIRING OF THE FIRST STAGE PORTION, THE COMBINATION INCLUDING A BURNABLE FUSE MEANS EXTENDING FORWARDLY FROM THE FIRST STAGE AFT PORTION AND CONNECTED TO THE ROCKETS IN THE SECOND STAGE FORWARD PORTION, SAID FUSE MEANS BEING ARRANGED TO BE IGNITED ONLY AFTER THE PROPELLANT GRAIN IN THE AFT PORTION IS BURNING IN THE AREA ADJACENT TO THE IMPERFORATE WALL.
References Cited (Backward Citations)
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US1103503A
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US2114214A
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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) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |