US2497969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquefied gas dispensing apparatus
Assignee: Bastian Blessing Co
•
Filing: 1940-06-07
•
Granted: 1950-02-21
•
Expires: 1960-06-07
Abstract
No abstract record available.
Inventors
- 👤 Olaf R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:25
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/04; F17C2270/00; F17C2270/01; F17C2270/0142; F17C2270/0144; F17C2270/0147; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6991; Y10T137/6995; Y10T137/8158; Y10T137/8342
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1609756A
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US1752165A
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US1752166A
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US1935925A
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US1894497A
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US2155340A
Cited
US2121673A
Cited
US2166922A
Cited
US2121675A
Cited
US2176829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |