US3173289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic melting point measuring method and apparatus
Assignee: California Research LLC
•
Filing: 1962-11-13
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Granted: 1965-03-16
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Expires: 1982-11-13
Abstract
No abstract record available.
Inventors
- 👤 Vincent C Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:31
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/02; G01N25/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
APPARATUS FOR CYCLICALLY DETERMINING THE MELTING POINT OF A STREAM OF ORGANIC LIQUID MATERIAL, COMPRISING A FLOW CONDUIT, MEANS FOR CONTINUOUSLY INTRODUCING SAID STREAM INTO ONE END OF SAID FLOW CONDUIT, MEANS FOR COOLING SAID CONDUIT UNTIL SAID LIQUID FLOW IS OBSTRUCTED BY A FROZEN MASS OF SAID MATERIAL, A HEATING MEANS FOR SAID CONDUIT, MEANS RESPONSIVE TO THE CESSATION OF SAID FLOW TO CONTROL AUTOMATICALLY SAID HEATING MEANS AND MELT SAID OBSTRUCTION, MEANS FOR CONTINUOUSLY INDICATING THE TEMPERATURE IN SAID CONDUIT, AND MEANS FOR RECORDING AUTOMATICALLY THE TEMPERATURE OF SAID CONDUIT AT THE TIME SAID OBSTRUCTION MELTS.
References Cited (Backward Citations)
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US2967421A
Cited
US3077764A
Cited
US3083543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |