US3148534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for testing organic liquid film forming characteristics
Assignee: North American Aviation Corp
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Filing: 1961-11-16
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Granted: 1964-09-15
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Expires: 1981-11-16
Abstract
No abstract record available.
Inventors
- 👤 Paul R Benson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:27
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/26; G01N33/28; G01N33/2805; G01N13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
APPARATUS FOR TESTING THE FILM FORMING CHARACTERISTICS OF AN ORGANIC LIQUID IN A STATIC ENVIRONMENT COMPRISING AT LEAST ONE VESSEL, MEANS FOR APPLYING AN INERT PRESSURIZED ATMOSPHERE IN SAID VESSEL, A HEATER ELEMENT DISPOSED IN SAID VESSEL, SAID VESSEL ADAPTED TO CONTAIN A QUANTITY OF ORGANIC LIQUID IN A QUANTITY SUFFICIENT TO AT LEAST PARTIALLY IMMERSE SAID HEATER IN THE ORGANIC LIQUID, MEANS FOR HEATING SAID ELEMENT TO A FIRST TEMPERATURE, AND MEANS INCLUDING A BATH SURROUNDING SAID VESSEL FOR HEATING THE CONTAINED ORGANIC LIQUID TO A SECOND TEMPERATURE LESS THAN SAID FIRST TEMPERATURE.
Claim 2
Dependent Claim
94 words
APPARATUS FOR TESTING THE FILM FORMING CHARACTERISTICS OF AN ORGANIC LIQUID IN A STATIC ENVIRONMENT COMPRISING AT LEAST ONE VESSEL, MEANS FOR APPLYING AN INERT PRESSURIZED ATMOSPHERE IN SAID VESSEL, A HEATER ELEMENT DISPOSED IN SAID VESSEL, SAID VESSEL ADAPTED TO CONTAIN A QUANTITY OF ORGANIC LIQUID IN A QUANTITY SUFFICIENT TO AT LEAST PARTIALLY IMMERSE SAID HEATER IN THE ORGANIC LIQUID, MEANS FOR HEATING SAID ELEMENT TO A FIRST TEMPERATURE, AND MEANS INCLUDING A BATH SURROUNDING SAID VESSEL FOR HEATING THE CONTAINED ORGANIC LIQUID TO A SECOND TEMPERATURE LESS THAN SAID FIRST TEMPERATURE.
References Cited (Backward Citations)
GB185814A
Cited
US2339026A
Cited
US2500964A
Cited
US2996594A
Cited
US2875313A
Cited
US3059467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |