US2697350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid level gauge
Assignee: Individual
•
Filing: 1953-02-25
•
Granted: 1954-12-21
•
Expires: 1973-02-25
Abstract
No abstract record available.
Inventors
- 👤 Sorber Gordon Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:15
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/56; G01F23/58; G01F23/32; G01F23/34; F; F17; F17C; F17C2250/00; F17C2250/04; F17C2250/0404; F17C2250/0408; F17C2250/0413
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) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |