Patent US3304724A successfully refreshed from Google Patents.
US3304724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank construction for space vehicles
Assignee: Individual
•
Filing: 1965-01-28
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Granted: 1967-02-21
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Expires: 1985-01-28
Abstract
No abstract record available.
Inventors
- 👤 Josef F Blumrich
- 👤 Carl A Loy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:32
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/60; F02K9/605
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A SPACE VEHICLE COMPRISING, IN COMBINATION: (A) A THRUST STRUCTURE; (B) A ROCKET ENGINE CONNECTED TO SAID THRUST STRUCTURE; (C) A PROPELLANT TANK HAVING A CYLINDRICAL BODY AND BULKHEADS SECURED TO THE OPPOSITE ENDS THEREOF; (D) A SUPPORTING COLUMN ATTACHED TO SAID BULKHEADS AND EXTENDED THROUGH THE CENTER OF SAID CYLINDRICAL BODY; (E) ONE OF SAID BULKHEADS HAVING A SEMITOROIDAL CONFIGURATION; AND
Claim 2
Dependent Claim
62 words
A SPACE VEHICLE COMPRISING, IN COMBINATION: (A) A THRUST STRUCTURE; (B) A ROCKET ENGINE CONNECTED TO SAID THRUST STRUCTURE; (C) A PROPELLANT TANK HAVING A CYLINDRICAL BODY AND BULKHEADS SECURED TO THE OPPOSITE ENDS THEREOF; (D) A SUPPORTING COLUMN ATTACHED TO SAID BULKHEADS AND EXTENDED THROUGH THE CENTER OF SAID CYLINDRICAL BODY; (E) ONE OF SAID BULKHEADS HAVING A SEMITOROIDAL CONFIGURATION; AND
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |