US2730894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable quench oil tester
Assignee: Standard Oil Co
•
Filing: 1953-11-30
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Granted: 1956-01-17
•
Expires: 1973-11-30
Abstract
No abstract record available.
Inventors
- 👤 Howard W Husa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:39
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN APPARATUS FOR EVALUATING THE QUENCHING POWER OF A FLUID WHICH COMPRISES THE COMBINATION OF A PYROMETER MEANS INCLUDING A THERMOCOUPLE, AN ELEVATED FURNACE MEANS FOR HEATING SAID THERMOCOUPLE A SAMPLE CONTAINER BELOW SAID FURNACE MEANS, A VERTICALLY SLIDING HOLDER FOR INITIALLY SUPPORTING SAID THERMOCOUPLE MEANS WITHIN SAID FURNACE, A TIMER MEANS, A SWITCH MEANS FOR INITIATING SAID TIMER, SAID SWITCH MEANS BEING ACTUATED BY THE FREE FALL OF SAID VERTICALLY SLIDING HOLDER, AND SAID TIMER BEING
Claim 2
Independent Claim
77 words
AN APPARATUS FOR EVALUATING THE QUENCHING POWER OF A FLUID WHICH COMPRISES THE COMBINATION OF A PYROMETER MEANS INCLUDING A THERMOCOUPLE, AN ELEVATED FURNACE MEANS FOR HEATING SAID THERMOCOUPLE A SAMPLE CONTAINER BELOW SAID FURNACE MEANS, A VERTICALLY SLIDING HOLDER FOR INITIALLY SUPPORTING SAID THERMOCOUPLE MEANS WITHIN SAID FURNACE, A TIMER MEANS, A SWITCH MEANS FOR INITIATING SAID TIMER, SAID SWITCH MEANS BEING ACTUATED BY THE FREE FALL OF SAID VERTICALLY SLIDING HOLDER, AND SAID TIMER BEING
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) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |