US2705417A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mineralogical analysis
Assignee: Petroleum Engineering Associates Inc
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Filing: 1951-12-21
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Granted: 1955-04-05
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Expires: 1971-12-21
Abstract
No abstract record available.
Inventors
- 👤 Paul C Romo
- 👤 Thomas W Lynch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:12
CPC Classifications
G; G01; G01V; G01V9/00; G01V9/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN DIFFERENTIAL THERMAL ANALYSIS INVOLVING THE COMPARATIVE MEASUREMENT OF THERMAL REACTIONS TAKING PLACE IN A SAMPLE TO BE ANALYZED AND A STANDARD SAMPLE WHILE GRADUALLY AND SIMULTANEOUSLY HEATING THE SAMPLES TO AN ELEVATED TEMPERATURE, THE IMPROVEMENT WHICH COMPRISES DETERMINING IN ADVANCE THE PRESENCE OF AT LEAST ONE THERMALLY REACTIVE COMPONENT OF THE SAMPLE TO BE ANALYZED, AND COMPOUNDING THE STANDARD SAMPLE TO CONTAIN SAID COMPONENT WHEREBY A THERMAL EFFECT OF ANY OTHER THERMALLY REACTIVE COMPONENTS OCCURRING AT SUBSTANTIALLY THE SAME TEMPERATURE IN THE SAMPLE TO BE ANALYZED MAY BE MORE READILY DETERMINED.
Claim 2
Dependent Claim
92 words
IN DIFFERENTIAL THERMAL ANALYSIS INVOLVING THE COMPARATIVE MEASUREMENT OF THERMAL REACTIONS TAKING PLACE IN A SAMPLE TO BE ANALYZED AND A STANDARD SAMPLE WHILE GRADUALLY AND SIMULTANEOUSLY HEATING THE SAMPLES TO AN ELEVATED TEMPERATURE, THE IMPROVEMENT WHICH COMPRISES DETERMINING IN ADVANCE THE PRESENCE OF AT LEAST ONE THERMALLY REACTIVE COMPONENT OF THE SAMPLE TO BE ANALYZED, AND COMPOUNDING THE STANDARD SAMPLE TO CONTAIN SAID COMPONENT WHEREBY A THERMAL EFFECT OF ANY OTHER THERMALLY REACTIVE COMPONENTS OCCURRING AT SUBSTANTIALLY THE SAME TEMPERATURE IN THE SAMPLE TO BE ANALYZED MAY BE MORE READILY DETERMINED.
References Cited (Backward Citations)
US1558828A
Cited
US2264968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |