Patent US2746285A successfully refreshed from Google Patents.
US2746285A
Expired / Lapsed
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Flash point measurement apparatus
Assignee: Standard Oil Co
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Filing: 1951-03-09
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Granted: 1956-05-22
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Expires: 1971-03-09
Abstract
No abstract record available.
Inventors
- 👤 Evon C Greanias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:49
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/50; G01N25/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN A FLASH TESTING APPARATUS, A FLASH CHAMBER, A CUP WITHIN SAID CHAMBER, CONDUIT MEANS EXTERIOR OF SAID CHAMBER SUPPLYING TEST LIQUID TO SAID CUP, A HEATER MEANS FOR SAID CONDUIT MEANS, AN OVERFLOW DRAIN FROM SAID CUP, A WALL MEANS DEFINING A VAPOR SPACE ABOVE SAID CUP, A SPARK IGNITION MEANS WITHIN SAID VAPOR SPACE, MEANS RESPONSIVE TO THE TEMPERATURE WITHIN THE SAID CUP, AND ELECTRICAL DETECTOR MEANS RESPONSIVE TO AN IGNITION FLASH IN SAID CHAMBER.
Claim 2
Dependent Claim
77 words
IN A FLASH TESTING APPARATUS, A FLASH CHAMBER, A CUP WITHIN SAID CHAMBER, CONDUIT MEANS EXTERIOR OF SAID CHAMBER SUPPLYING TEST LIQUID TO SAID CUP, A HEATER MEANS FOR SAID CONDUIT MEANS, AN OVERFLOW DRAIN FROM SAID CUP, A WALL MEANS DEFINING A VAPOR SPACE ABOVE SAID CUP, A SPARK IGNITION MEANS WITHIN SAID VAPOR SPACE, MEANS RESPONSIVE TO THE TEMPERATURE WITHIN THE SAID CUP, AND ELECTRICAL DETECTOR MEANS RESPONSIVE TO AN IGNITION FLASH IN SAID CHAMBER.
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) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |