US2952987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the maintenance of liquefied petroleum products and method of manufacture thereof
Assignee: Texaco Inc
•
Filing: 1957-11-12
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Granted: 1960-09-20
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Expires: 1977-11-12
Abstract
No abstract record available.
Inventors
- 👤 Frank A Clauson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:44
CPC Classifications
B; B63; B63B; B63B25/00; B63B25/02; B63B25/08; B63B25/12; B63B25/16; F; F17; F17C; F17C3/00; F17C3/02; F17C3/025; F17C2201/00; F17C2201/01; F17C2201/0147; F17C2201/0166; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0329; F17C2203/0345; F17C2203/035; F17C2203/0354; F17C2203/0391; F17C2203/06; F17C2203/0602; F17C2203/0607; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2209/00; F17C2209/23; F17C2209/238; F17C2221/00; F17C2221/01; F17C2221/011; F17C2221/012; F17C2221/014; F17C2221/03; F17C2221/032; F17C2221/033; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2265/00; F17C2265/03; F17C2265/032; F17C2265/033; F17C2265/034; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32; Y10; Y10S; Y10S220/00; Y10S220/901; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
AN APPARATUS FOR MAINTAING A NORMALL GASEOUS HYDROCARBON IN LIQUEFIED FORM COMPRISING THE COMBINATION OF INNER AND OUTER RECEPTACLES AND MEANS FOR SUPPORTING AND MAINTAING THE INNER RECEPTACLE IN SPACED RELATIONSHIP WITH THE OUTER RECEPTACLE, SAID OUTER RECEPTACLE BEING SUBJECTED TO ATMOSPHERIC PRESSURE AND CONTAINING A PETROLEUM PRODUCT HAVING LOW HEAT TRANSMISSION CHARACTERISTICS AND A MATERIAL WITH LOW THERMAL CONDUCTIVITY WHICH IS DEPOSITED THEREFOROM AS THE AMBIENT TEMPERATURE THEREOF IS DECREASED, SAID INNER RECEPTACLE BEING ADATPED TO RECEIVE A LOW TEMPERATURE LIQUEFIED GAS WHEREBY THE AMBIENT TEMPERATURE THEREOF AND ADJACENT THE OUTER WALL OF SAID INNER RECEPTACLE IS LOWERED TO CAUSE A DEPOSIT OF SAID MATERIAL FROM SAID PETROLEUM PRODUCT TO FORM THEREON CONCOMITANTLY WITH THE PRESENCE OF SAID LOW TEMPERATURE LIQUEFIED GAS IN SIAD INNER RECEPTACLE, SAID INNER RECEPTACLE BEING PROVIDED WITH A DEPOSIT THEREON OF AN OUTER INSULATING LAYER OF CELLULAR CONSTRUCTION INCLUDING WAXY AND ASPHALTIC HYDROCARBONS.
Claim 2
Independent Claim
149 words
AN APPARATUS FOR MAINTAING A NORMALL GASEOUS HYDROCARBON IN LIQUEFIED FORM COMPRISING THE COMBINATION OF INNER AND OUTER RECEPTACLES AND MEANS FOR SUPPORTING AND MAINTAING THE INNER RECEPTACLE IN SPACED RELATIONSHIP WITH THE OUTER RECEPTACLE, SAID OUTER RECEPTACLE BEING SUBJECTED TO ATMOSPHERIC PRESSURE AND CONTAINING A PETROLEUM PRODUCT HAVING LOW HEAT TRANSMISSION CHARACTERISTICS AND A MATERIAL WITH LOW THERMAL CONDUCTIVITY WHICH IS DEPOSITED THEREFOROM AS THE AMBIENT TEMPERATURE THEREOF IS DECREASED, SAID INNER RECEPTACLE BEING ADATPED TO RECEIVE A LOW TEMPERATURE LIQUEFIED GAS WHEREBY THE AMBIENT TEMPERATURE THEREOF AND ADJACENT THE OUTER WALL OF SAID INNER RECEPTACLE IS LOWERED TO CAUSE A DEPOSIT OF SAID MATERIAL FROM SAID PETROLEUM PRODUCT TO FORM THEREON CONCOMITANTLY WITH THE PRESENCE OF SAID LOW TEMPERATURE LIQUEFIED GAS IN SIAD INNER RECEPTACLE, SAID INNER RECEPTACLE BEING PROVIDED WITH A DEPOSIT THEREON OF AN OUTER INSULATING LAYER OF CELLULAR CONSTRUCTION INCLUDING WAXY AND ASPHALTIC HYDROCARBONS.
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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) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |