US3262319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for obtaining data for determining surface area and pore volume
Assignee: Georgia Tech Research Institute
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Filing: 1963-05-10
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Granted: 1966-07-26
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Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Clyde Orr
- 👤 Warren P Hendrix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:45
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/08; G01N15/088; G01N15/0893
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
134 words
AN INSTRUMENT FOR OBTAINING THE DATA NECESSARY TO COMPUTE THE PORE COLUME DISTRIBUTION FOR A SAMPLE OF MATERIAL IN THE INTERIOR OF A SAMPLE FLASK, SAID INSTRUMENT COMPRISNG, IN COMBINATION, A MANIFOLD WITH A GAS-TIGHT INTERIOR, MEANS FOR SELECTIVELY CONNECTING AND DISCONNECTING THE INTERIOR OF THE SAMPLE FLASK TO THE INTERIOR OF THE MANIFOLD, EXTRA VOLUME MEANS, MEANS SELECTIVELY CONNECTING AND DISCONNECTING THE EXTRA VOLUME MEANS TO THE INTERIOR OF THE MANIFOLD, MEANS FOR ADMITTING CONTROLLED AMOUNTS OF A GAS INTO THE INTERIOR OF THE MANIFOLD, MEANS FOR REMOVING ALL GAS FROM THE INTERIOR OF THE MANIFOLD, MEANS FOR INDICATING GAS PRESSURE IN THE MANIFOLD, MEANS FOR INDICATING THE TEMPERATURE OF A GAS IN THE MANIFOLD, MEANS FOR THE CONTROLLED HEATING OF THE SAMPLE OF MATERIAL, AND MEANS FOR COOLING THE SAMPLE OF MATERIAL.
References Cited (Backward Citations)
US2729969A
Cited
US2960870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |