Patent US3349940A successfully refreshed from Google Patents.
US3349940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally insulated tank
Assignee: Cornelius Co
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Filing: 1964-12-28
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Granted: 1967-10-31
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Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 Richard T Cornelius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:55
CPC Classifications
B; B65; B65D; B65D25/00; B65D25/20; B65D25/24; A; A47; A47J; A47J41/00; A47J41/0055; A47J41/0072; A47J41/0077; B65D81/00; B65D81/38; B65D81/3802; B65D81/3806; Y; Y10; Y10S; Y10S220/00; Y10S220/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A TANK ASSEMBLY COMPRISING (A) A CYLINDRICAL TANK; (B) A PAIR OF BASES OF HEAT-INSULATIVE MATERIAL RESPECTIVELY FIXEDLY SECURED TO OPPOSITE ENDS OF SAID TANK FOR SUPPORTING SAID TANK, EACH OF SAID BASES HAVING A PAIR OF CONCENTRIC INTERNAL ANNULAR GROOVES OPENING TOWARD THE END OF SAID TANK AND DEFINING A PAIR OF ANNULAR AIR-SPACES THEREWITH AT EACH END OF SAID TANK IN WHICH AIR IS PERMANENTLY TRAPPED; AND (C) A TUBULAR MEMBER OF HEAT-INSULATIVE MATERIAL EXPOSED TO THE ATMOSPHERE AND ENCIRCLING SAID TANK IN SPACED RELATION THERETO, AND SUPPORTED AT ITS OPPOSITE ENDS BY SAID BASES.
Claim 2
Dependent Claim
97 words
A TANK ASSEMBLY COMPRISING (A) A CYLINDRICAL TANK; (B) A PAIR OF BASES OF HEAT-INSULATIVE MATERIAL RESPECTIVELY FIXEDLY SECURED TO OPPOSITE ENDS OF SAID TANK FOR SUPPORTING SAID TANK, EACH OF SAID BASES HAVING A PAIR OF CONCENTRIC INTERNAL ANNULAR GROOVES OPENING TOWARD THE END OF SAID TANK AND DEFINING A PAIR OF ANNULAR AIR-SPACES THEREWITH AT EACH END OF SAID TANK IN WHICH AIR IS PERMANENTLY TRAPPED; AND (C) A TUBULAR MEMBER OF HEAT-INSULATIVE MATERIAL EXPOSED TO THE ATMOSPHERE AND ENCIRCLING SAID TANK IN SPACED RELATION THERETO, AND SUPPORTED AT ITS OPPOSITE ENDS BY SAID BASES.
References Cited (Backward Citations)
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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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |