US3267730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensing element for the measurement of liquid level
Assignee: University of Illinois at Urbana-Champaign
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Filing: 1963-10-11
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Granted: 1966-08-23
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Expires: 1983-10-11
Abstract
No abstract record available.
Inventors
- 👤 Cameron B Satterthwaite
- 👤 Roger P Ries
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:53
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/24; G01F23/246; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/842
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
IN A GAUGE USED FOR MEASURING THE LEVEL OF LIQUID IN A CONTAINER, A SENSING ELEMENT COMPRISING A RESISTANCE WIRE HAVING A SUPER-CONDUCTING MATERIAL COATED ON A PORTION THEREOF WHILE A PORTION OF SAID WIRE IS FREE OF THE SUPER-CONDUCTING MATERIAL, SAID ELEMENT EXHIBITING SUBSTANTIALLY CONSTANT RESISTANCE BETWEEN ROOM TEMPERATURE TO ABOUT 4* K., ELEMENT BEING ADAPTED TO BE IMMERSED
Claim 2
Dependent Claim
60 words
IN A GAUGE USED FOR MEASURING THE LEVEL OF LIQUID IN A CONTAINER, A SENSING ELEMENT COMPRISING A RESISTANCE WIRE HAVING A SUPER-CONDUCTING MATERIAL COATED ON A PORTION THEREOF WHILE A PORTION OF SAID WIRE IS FREE OF THE SUPER-CONDUCTING MATERIAL, SAID ELEMENT EXHIBITING SUBSTANTIALLY CONSTANT RESISTANCE BETWEEN ROOM TEMPERATURE TO ABOUT 4* K., ELEMENT BEING ADAPTED TO BE IMMERSED
References Cited (Backward Citations)
US3115612A
Cited
US3184303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |