Patent US1369998A successfully refreshed from Google Patents.
Patent US4454973A successfully refreshed from Google Patents.
US3227984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Level switch depolarizer
Assignee: Bendix Corp
•
Filing: 1963-04-01
•
Granted: 1966-01-04
•
Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Kenneth C Halliday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:50
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/0029; G; G01; G01C; G01C9/00; G01C9/18; G01F; G01F23/00; G01F23/22; G01F23/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN A LIQUID LEVEL SWITCH OF A TYPE INCLUDING A CLOSED RECEPTACLE CONTAINING A LIQUID PHASE ELECTROLYTE AND A GAS PHASE BUBBLE AND ADAPTED TO PASS AN ELECTRIC CURRENT THROUGH THE ELECTROLYTE, THE IMPROVEMENT COMPRISING A LIQUID PHASE ORGANIC COMPLEX INCLUDING A MEMBER OF A GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE IN SAID ELECTROLYTE AND DISSOLVABLE THEREIN, THE ORGANIC COMPOUND BEING PRESENT IN AN MINIMUM PROPORTION OF 1 GRAM PER 100 MILLILITERS OF ELECTROLYTE SOLUTION TO REACT WITH HYDROGEN IONS FORMING IN THE SWITCH AT THE ELECTRODES BY POLARIZATION TO EXCHANGE THE MEMBER OF THE GROUP FOR SAID HYDROGEN IONS AND RELEASE FREE THE MEMBER OF THE GROUP WHICH IS SOLUABLE IN THE LIQUID PHASE.
Claim 2
Dependent Claim
116 words
IN A LIQUID LEVEL SWITCH OF A TYPE INCLUDING A CLOSED RECEPTACLE CONTAINING A LIQUID PHASE ELECTROLYTE AND A GAS PHASE BUBBLE AND ADAPTED TO PASS AN ELECTRIC CURRENT THROUGH THE ELECTROLYTE, THE IMPROVEMENT COMPRISING A LIQUID PHASE ORGANIC COMPLEX INCLUDING A MEMBER OF A GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE IN SAID ELECTROLYTE AND DISSOLVABLE THEREIN, THE ORGANIC COMPOUND BEING PRESENT IN AN MINIMUM PROPORTION OF 1 GRAM PER 100 MILLILITERS OF ELECTROLYTE SOLUTION TO REACT WITH HYDROGEN IONS FORMING IN THE SWITCH AT THE ELECTRODES BY POLARIZATION TO EXCHANGE THE MEMBER OF THE GROUP FOR SAID HYDROGEN IONS AND RELEASE FREE THE MEMBER OF THE GROUP WHICH IS SOLUABLE IN THE LIQUID PHASE.
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |