US3177700A
Expired / Lapsed
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Method and apparatus for measuring the gas content of materials
Assignee: Leica Microsystems Inc
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Filing: 1961-07-18
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Granted: 1965-04-13
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Expires: 1981-07-18
Abstract
No abstract record available.
Inventors
- 👤 Sier Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:16
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/14; G01N27/18; G01N27/185; G01N33/00; G01N33/20; G01N33/202; G01N33/2022; G01N33/2025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
APPARATUS FOR MEASURING THE GAS CONTENT OF MATERIALS COMPRISING A DOUBLE OPEN-ENDED TUBE HAVING TWO UPPER OPENINGS ADJOINING ITS UPPER END AND A LOWER OPENING ADJOINING ITS LOWER END, REMOVABLE CLOSURES ON THE ENDS OF SAID TUBE, A FURNACE SURROUNDING A PORTION OF SAID TUBE, A VALVE CONNECTED ON ONE SIDE TO ONE OF SAID UPPER OPENINGS FOR THE ADMISSION OF AN INERT GAS, A TUBULAR MEMBER CONNECTED AT ONE END TO THE OTHER OF SAID UPPER OPENING AND AT THE OTHER END TO SAID LOWER OPENING TO
Claim 2
Dependent Claim
88 words
APPARATUS FOR MEASURING THE GAS CONTENT OF MATERIALS COMPRISING A DOUBLE OPEN-ENDED TUBE HAVING TWO UPPER OPENINGS ADJOINING ITS UPPER END AND A LOWER OPENING ADJOINING ITS LOWER END, REMOVABLE CLOSURES ON THE ENDS OF SAID TUBE, A FURNACE SURROUNDING A PORTION OF SAID TUBE, A VALVE CONNECTED ON ONE SIDE TO ONE OF SAID UPPER OPENINGS FOR THE ADMISSION OF AN INERT GAS, A TUBULAR MEMBER CONNECTED AT ONE END TO THE OTHER OF SAID UPPER OPENING AND AT THE OTHER END TO SAID LOWER OPENING TO
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |