US3224638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable liquid metering device
Assignee: Individual
•
Filing: 1964-06-09
•
Granted: 1965-12-21
•
Expires: 1984-06-09
Abstract
No abstract record available.
Inventors
- 👤 Jr David Harrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:50
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/24; G01F23/241; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7306
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A LIQUID METERING DEVICE, COMPRISING: (A) A LIQUID CONTAINER, (B) AN UPPER ELECTRICAL DETECTOR, (C) AN ELECTRICAL CONDUCTOR SUPPORT CONNECTED TO THE UPPER DETECTOR, (D) MEANS FOR MOVABLY MOUNTING THE CONDUCTOR SUPPORT RELATIVE TO THE LIQUID CONTAINER, (E) A LOWER ELECTRICAL DETECTOR, AND
Claim 2
Dependent Claim
43 words
A LIQUID METERING DEVICE, COMPRISING: (A) A LIQUID CONTAINER, (B) AN UPPER ELECTRICAL DETECTOR, (C) AN ELECTRICAL CONDUCTOR SUPPORT CONNECTED TO THE UPPER DETECTOR, (D) MEANS FOR MOVABLY MOUNTING THE CONDUCTOR SUPPORT RELATIVE TO THE LIQUID CONTAINER, (E) A LOWER ELECTRICAL DETECTOR, AND
References Cited (Backward Citations)
US2885118A
Cited
US2957606A
Cited
US3019764A
Cited
US3065880A
Cited
US3090525A
Cited
US3131710A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |