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US3095062A Expired / Lapsed US ⏱️ 0.0 years remaining

Oil change system

Assignee: California Research LLC
•
Filing: 1961-11-10
•
Granted: 1963-06-25
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Expires: 1981-11-10
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Abstract

No abstract record available.

Inventors

  • 👤 George L Neely

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 19:46
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/84; B67D7/845; F; F01; F01M; F01M11/00; F01M11/04; F01M11/0458

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 147 words
AN EVACUATION SYSTEM FOR AN ENGINE CRANKCASE HAVING A DIP STICK GUIDE TUBE IN DOWNWARD COMMUNICATION THEREWITH COMPRISING AN OPEN-END TUBULAR MEMBER OF A FLEXIBLE NON-CONDUCTIVE MATERIAL ADAPTED TO BE INSERTED IN THE DIP STICK GUIDE TUBE, AN ELONGATE ELECTRICALLY CONDUCTIVE PROBE SECURED WITHIN SAID TUBULAR MEMBER TO EXTEND AXIALLY THEREOF WITH ONE END TIP PORTION OF SAID PROBE EXTENDING BEYOND THE OPEN END OF SAID TUBULAR MEMBER, SAID PROBE HAVING SUFFICIENT ELASTIC RESTORING FORCE TO OVERCOME FLEXURAL DEFORMATION OF SAID TUBULAR MEMBER, A SOURCE OF ELECTRIC CURRENT, SAID PROBE BEING CONNECTED TO SAID SOURCE, AN ELECTRICALLY ACTUATED SIGNAL DEVICE CONNECTED TO SAID SOURCE AND ADAPTED TO BE CONNECTED TO THE CRANKCASE, A FLUID PUMP IN COMMUNICATION WITH SAID TUBULAR MEMBER, ELECTRICALLY ACTUATED PUMP DRIVING MEANS, CONDUCTOR MEANS CONNECTING SAID PUMP DRIVING MEANS ACROSS SAID SOURCE, AND SELECTIVELY OPERATED ON-OFF SWITCH MEANS INTERPOSED IN SAID CONDUCTOR MEANS.

References Cited (Backward Citations)

US1116466A Cited
US2200967A Cited
GB534263A Cited
US2477450A Cited
US2640502A Cited
US2910940A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-06-24 1966-12-24 1967-06-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-06-24 1970-12-24 1971-06-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-06-24 1974-12-24 1975-06-25 $7700.00 Window Closed / Lapsed

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