Patent US3195346A successfully refreshed from Google Patents.
US3195346A
Expired / Lapsed
US
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Automatic osmometer
Assignee: MECHROLAB Inc
•
Filing: 1963-01-14
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Granted: 1965-07-20
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Expires: 1983-01-14
Abstract
No abstract record available.
Inventors
- 👤 Harry C Ehrmantraut
- 👤 Roderic E Steele
- 👤 Wilmer E Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:15
CPC Classifications
G; G01; G01N; G01N13/00; G01N13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A MEMBERANE OSMOMETER COMPRISING: (A) A SUPPORT HAVING A GENERALLY FLAT UPPER SURFACE ADAPTED TO SUPPORT A MEMBRANE OVER SAID UPPER SURFACE, SAID SUPPORT HAVING A CHANNEL INSCRIBED IN ITS UPPER SURFACE DEFINING A SOLVENT CHAMBER; (B) A CLAMP HAVING A GENERALLY FLAT LOWER SURFAE ADAPTED TO PRESS DOWN UPON THE MEMBERANE SUPPORTED UPON SAID SUPPORT, SAID CLAMP HAVING INSCRIBED IN ITS LOWER SURFACE A CONTINUOUS CHANNEL DEFINING A SAMPLE CHAMBER;
Claim 2
Dependent Claim
71 words
A MEMBERANE OSMOMETER COMPRISING: (A) A SUPPORT HAVING A GENERALLY FLAT UPPER SURFACE ADAPTED TO SUPPORT A MEMBRANE OVER SAID UPPER SURFACE, SAID SUPPORT HAVING A CHANNEL INSCRIBED IN ITS UPPER SURFACE DEFINING A SOLVENT CHAMBER; (B) A CLAMP HAVING A GENERALLY FLAT LOWER SURFAE ADAPTED TO PRESS DOWN UPON THE MEMBERANE SUPPORTED UPON SAID SUPPORT, SAID CLAMP HAVING INSCRIBED IN ITS LOWER SURFACE A CONTINUOUS CHANNEL DEFINING A SAMPLE CHAMBER;
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |