US3201970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pour point determination
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1961-12-26
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Granted: 1965-08-24
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Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 John B Beaugh
- 👤 Richard C Halter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:33
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/26; G01N33/28; G01N33/2811; G01N11/00; G01N11/10; G01N11/16; G01N25/00; G01N25/02; G01N25/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A METHOD OF MEASURING THE POUR POINT OF OIL COMPRISING IMMERSING A VIBRATING PROBE INTO SAID OIL, COOLING SAID OIL FROM A TEMPERATURE ABOVE THE POUR POINT OF SAID OIL TO A TEMPERATURE BELOW THE POUR POINT, AND MEASUREING THE CHANGE OF VIBRATIONAL ENERGY OF SAID VIBRATING PROBE WITH RESPECT TO TEMPERATURE WHEREBY THE POUR POINT IS DETERMINED FROM A DEFINITE BREAK IN THE VIBRATIONAL ENERGY CAUSE BY A REDUCTION IN THE DAMPING ACTION OF SAID OIL AS SAID OIL IS COOLED.
Claim 2
Independent Claim
82 words
A METHOD OF MEASURING THE POUR POINT OF OIL COMPRISING IMMERSING A VIBRATING PROBE INTO SAID OIL, COOLING SAID OIL FROM A TEMPERATURE ABOVE THE POUR POINT OF SAID OIL TO A TEMPERATURE BELOW THE POUR POINT, AND MEASUREING THE CHANGE OF VIBRATIONAL ENERGY OF SAID VIBRATING PROBE WITH RESPECT TO TEMPERATURE WHEREBY THE POUR POINT IS DETERMINED FROM A DEFINITE BREAK IN THE VIBRATIONAL ENERGY CAUSE BY A REDUCTION IN THE DAMPING ACTION OF SAID OIL AS SAID OIL IS COOLED.
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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |