US3228141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toy rocket
Assignee: Metallwarenfabrik Dr Adolf Kurschner
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Filing: 1964-11-09
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Granted: 1966-01-11
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Expires: 1984-11-09
Abstract
No abstract record available.
Inventors
- 👤 Bross Helmut Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:51
CPC Classifications
A; A63; A63H; A63H27/00; A63H27/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A TOY ROCKET HAVING AN UPPERR ROCKET STAGE AND A LOWER ROCKET STAGE, AND MEANS FOR SEPARATING AND PROPELLING THE UPPER ROCKET STAGE FROM THE LOWER STAGE AFTER THE ROCKET HAS BEEN IN FLIGHT FOR A CERTAIN LENGTH OF TIME, SAID MEANS COMPRISING ASSOCIATED SCREW AND NUT MEMBERS ON SAID TWO ROCKET STAGES, RESPECTIVELY, PRESSURE PRODUCING MEANS ACTING UPON ONE OF SAID MEMBERS AND THEREBY TENDING TO ROTATE THE UPPER STAGE IN ONE DIRECTION RELATIVELY TO THE LOWER STAGE AND THUS TO UNSCREW THE TWO STAGES FROM EACH OTHER, AND MEANS FOR PRODUCING A FORCE DURING THE FIRST PART OF THE FLIGHT OF SAID ROCKET WHICH COUNTERACTS SAID ROTATION.
Claim 2
Dependent Claim
109 words
A TOY ROCKET HAVING AN UPPERR ROCKET STAGE AND A LOWER ROCKET STAGE, AND MEANS FOR SEPARATING AND PROPELLING THE UPPER ROCKET STAGE FROM THE LOWER STAGE AFTER THE ROCKET HAS BEEN IN FLIGHT FOR A CERTAIN LENGTH OF TIME, SAID MEANS COMPRISING ASSOCIATED SCREW AND NUT MEMBERS ON SAID TWO ROCKET STAGES, RESPECTIVELY, PRESSURE PRODUCING MEANS ACTING UPON ONE OF SAID MEMBERS AND THEREBY TENDING TO ROTATE THE UPPER STAGE IN ONE DIRECTION RELATIVELY TO THE LOWER STAGE AND THUS TO UNSCREW THE TWO STAGES FROM EACH OTHER, AND MEANS FOR PRODUCING A FORCE DURING THE FIRST PART OF THE FLIGHT OF SAID ROCKET WHICH COUNTERACTS SAID ROTATION.
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |