US3564901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and technique for gas analysis
Assignee: GEORGE H MEGRUE
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Filing: 1968-09-25
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Granted: 1971-02-23
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Expires: 1988-09-25
Abstract
Abstract A SYSTEM AND TECHNIQUE FOR IN SITU ANALYSIS OF GAS CONSTITUENTS OF A VOLATILIZED MATERIAL AND IN PARTICULAR FOR ISTOPIC ANALYSIS OF RARE GASES OCCULDED WITHIN A METEORITE TO DETERMINE THE COMPOSITIONAL GRADIENT OF SUCH METEORITE. A MICROGRAM QUANTITY OF MATERIAL FROM PREDETERMINED METEROTIC REGIONS IS VOLATILIZED IN A HIGH VACUUM AND THE GASES RELEASED FROM THESE REGIONS ARE ISOTOPICALLY ANALYZED TO DETERMINE THEIR IDENTITY AND ABUNDANCE AT EACH OF THE PREDETERMINED REGIONS.
Inventors
- 👤 George H Megrue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:28
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |