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US2851985A
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US
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Device for indicating loss or use of gas from a container holding liquified gas
Assignee: Individual
•
Filing: 1956-10-02
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Granted: 1958-09-16
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Expires: 1976-10-02
Abstract
No abstract record available.
Inventors
- 👤 Warner L Keehn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:41
CPC Classifications
G; G01; G01L; G01L19/00; G01L19/08; G01L19/12; F; F17; F17C; F17C13/00; F17C13/02; F17C13/025; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0329; F17C2205/0338; F17C2221/00; F17C2221/01; F17C2221/011; F17C2221/013; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2223/03; F17C2223/036; F17C2250/00; F17C2250/04; F17C2250/0404; F17C2260/00; F17C2260/03; F17C2260/035; F17C2260/038
Claims Analysis
Total Claims: 0
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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) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |