Patent US3311984A successfully refreshed from Google Patents.
US3311984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dipstick
Assignee: Individual
•
Filing: 1964-04-20
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Granted: 1967-04-04
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Expires: 1984-04-20
Abstract
No abstract record available.
Inventors
- 👤 Stux Stefan
- 👤 Abel A Aghion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:24
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A DIPSTICK COMPRISING A NARROW, ELONGATED MEMBER INTENDED FOR IMMERSION IN A LIQUID FOR MEASURING THE LEVEL THEREOF, SAID MEMBER HAVING A PLURALITY OF CAPILLARY OPENINGS SPACED IN THE DIRECTION OF ITS LONGITUDINAL AXIS ADAPTED TO TRAP AND RETAIN LIQUID THEREIN WHEN SAID MEMBER IS IMMERSED IN THE LIQUID FOR PROVIDING AN INDICATION OF THE LIQUID LEVEL, CHARACTERIZED IN THAT SAID MEMBER IS MADE OF SPRINGY MATERIAL SO AS TO BE DEFORMABLE UPON THE APPLICATION OF TENSION IN THE DIRECTION OF ITS LONGITUDINAL AXIS TO INCREASE THE SIZE OF SAID CAPILLARY OPENINGS SUFFICIENT TO RELEASE THE TRAPPED LIQUID, THEREBY REMOVING SAID INDICATION AND RESTORING SAID DIPSTICK FOR RE-USE, SAID DIPSTICK FURTHER INCLUDING A FIRST AND A SECOND MEMBER RELATIVELY MOVEABLE WITH RESPECT TO EACH OTHER, THE DEFORMABLE MEMBER BEING SECURED AT IT S TOP TO THE BOTTOM OF SAID FIRST MEMBER AND AT ITS BOTTOM TO THE BOTTOM OF SAID SECOND MEMBER, THE TOP OF SAID FIRST MEMBER INCLUDING FINGER GRIPS AND THE TOP OF SAID SECOND MEMBER INCLUDING A PRESSURE APPLYING ELEMENT.
Claim 2
Dependent Claim
173 words
A DIPSTICK COMPRISING A NARROW, ELONGATED MEMBER INTENDED FOR IMMERSION IN A LIQUID FOR MEASURING THE LEVEL THEREOF, SAID MEMBER HAVING A PLURALITY OF CAPILLARY OPENINGS SPACED IN THE DIRECTION OF ITS LONGITUDINAL AXIS ADAPTED TO TRAP AND RETAIN LIQUID THEREIN WHEN SAID MEMBER IS IMMERSED IN THE LIQUID FOR PROVIDING AN INDICATION OF THE LIQUID LEVEL, CHARACTERIZED IN THAT SAID MEMBER IS MADE OF SPRINGY MATERIAL SO AS TO BE DEFORMABLE UPON THE APPLICATION OF TENSION IN THE DIRECTION OF ITS LONGITUDINAL AXIS TO INCREASE THE SIZE OF SAID CAPILLARY OPENINGS SUFFICIENT TO RELEASE THE TRAPPED LIQUID, THEREBY REMOVING SAID INDICATION AND RESTORING SAID DIPSTICK FOR RE-USE, SAID DIPSTICK FURTHER INCLUDING A FIRST AND A SECOND MEMBER RELATIVELY MOVEABLE WITH RESPECT TO EACH OTHER, THE DEFORMABLE MEMBER BEING SECURED AT IT S TOP TO THE BOTTOM OF SAID FIRST MEMBER AND AT ITS BOTTOM TO THE BOTTOM OF SAID SECOND MEMBER, THE TOP OF SAID FIRST MEMBER INCLUDING FINGER GRIPS AND THE TOP OF SAID SECOND MEMBER INCLUDING A PRESSURE APPLYING ELEMENT.
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) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |