US3069042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for storing liquefied gases
Assignee: Herrick L Johnston Inc
•
Filing: 1961-07-06
•
Granted: 1962-12-18
•
Expires: 1981-07-06
Abstract
No abstract record available.
Inventors
- 👤 Herrick L Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:48
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/02; F17C3/08; F17C13/00; F17C13/12; F17C13/123; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2203/00; F17C2203/01; F17C2203/014; F17C2203/015; F17C2203/03; F17C2203/0304; F17C2203/0308; F17C2203/0312; F17C2203/0391; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0631; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0332; F17C2221/00; F17C2221/01; F17C2221/016; F17C2221/017; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2223/04; F17C2223/041; Y; Y10; Y10S; Y10S165/00; Y10S165/904; Y10S220/00; Y10S220/901
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
40 words
APPARATUS FOR THE STORAGE OF LIQUID HELIUM COMPRISING A DOUBLE WALLED INSULATED CLOSED CONTAINER AND TWO GROUPS OF VERTICALLY ORIENTED THERMALLY CONDUCTIVE MESHED SCREENS EXTENDING FROM THE BOTTOM OF THE CONTAINER TO THE TOP THEREOF TO MINIMIZE DENSITY STRATIFICATION THROUGHOUT
References Cited (Backward Citations)
US1084116A
Cited
US1630140A
Cited
US1616008A
Cited
US2247107A
Cited
US2927437A
Cited
US2863297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |