Patent US3258683A successfully refreshed from Google Patents.
US3258683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for detection and measurement of hydrogen-effusion properties of fluids
Assignee: —
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Filing: —
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Granted: 1966-06-28
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Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:10
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/62; G01N27/68; G01N27/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A METHOD OF PRODUCING A SERIES OF HYDROGEN-TESTING VACUUMN TUBES HAVING HYDROGEN PERMEABLE SHELLS WITH OUTER WALLS, INCLUDING: COATING PREDETERMINED PROPORTIONS OF THE OUTER WALLS OF A GROUP OF SUCH VACUUM TUBES WITH HYDROGENIMPERMEABLE PAINT MATERIAL WHILE LEAVING WINDOWS THROUGH SAID PAINT COATINGS TO ESTABLISH PREDETERMINED HYDROGEN PERMEATION CHARACTERISTICS; TESTING SUCH TUBES FOR SUCH CHARACTERISTICS; AND ADJUSTING THE WINDOW AREAS TO PROVIDE UNIFORM PERMEATION CHARACTERIUSTICS IN ALL OF SAID GROUP OF TUBES.
Claim 2
Dependent Claim
106 words
APPARATUS FOR MEASURING HYDROGEN EFFUSION CHARACTERISTICS OF A FLUID MATERIAL, INCLUDING: A VACUUM TUBE HAVING A HYDROGEN-PERMEABLE SHELL IMMERSIBLE IN THE FLUID MATERIAL; A PLURALITY OF ELECTRODES IN SAID SHELL BEING SENSITIVE, WHEN ELECTRICALLY ENERGIZED, TO CHANGES IN HYDROGEN PRESSURE WITHIN THE SHELL; AND A HYDROGEN IMPERMEABLE COATING SEALED UPON A PREDETERMINED PORTION OF SAID SHELL THAT COVERS THE OUTER SURFACE OF SAID SHELL ON ALL SIDES OF A PREDETERMINED AREA DEFINING A WINDOW PORTION OF SAID SHELL, SAID WINDOW PORTION BEING AT A POSITION ON SAID SHELL REMOTE FROM SAID ELECTRODES, SAID COATING BLOCKING PASSAGE OF HYDROGEN INTO SAID SHELL EXCEPT THROUGH SAID WINDOW PORTION.
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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |