US3031887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for measurement of liquid level or volume of liquefied gases
Assignee: Herrick L Johnston Inc
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Filing: 1960-12-01
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Granted: 1962-05-01
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Expires: 1980-12-01
Abstract
No abstract record available.
Inventors
- 👤 Charles R Weisend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:45
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/02; F17C13/021; G; G01; G01F; G01F23/00; G01F23/22; G01F23/24; G01F23/246; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2250/00; F17C2250/04; F17C2250/0404; F17C2250/0408; F17C2250/0426; F17C2250/043; F17C2250/0434; F17C2250/0439; F17C2250/0486; F17C2250/0491; F17C2250/0495
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) | 1965-04-30 | 1965-10-30 | 1966-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-30 | 1969-10-30 | 1970-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-30 | 1973-10-30 | 1974-05-01 | $7700.00 | Window Closed / Lapsed |