US3039856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for detecting the presence of organic gases and vapours
Assignee: Orica Ltd
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Filing: 1958-06-30
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Granted: 1962-06-19
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Expires: 1978-06-30
Abstract
No abstract record available.
Inventors
- 👤 Mcwilliam Ian Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:01
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/62; G01N27/626
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
THE METHOD OF DETECTING THE PRESENCE OF AN ORGANIC VAPOR IN A GAS WHICH COMPRISES PASSING THE GAS INTO THE REGION OF THE COMBUSTION ZONE OF A HYDROGEN FUEL FLAME, AND DETECTING THE CHANGE IN THE ELECTRICAL CONDUCTIVITY OF THE FLAME CONSEQUENT UPON THE PRESENCE OF THE SAID ORGANIC VAPOR.
Claim 2
Independent Claim
50 words
THE METHOD OF DETECTING THE PRESENCE OF AN ORGANIC VAPOR IN A GAS WHICH COMPRISES PASSING THE GAS INTO THE REGION OF THE COMBUSTION ZONE OF A HYDROGEN FUEL FLAME, AND DETECTING THE CHANGE IN THE ELECTRICAL CONDUCTIVITY OF THE FLAME CONSEQUENT UPON THE PRESENCE OF THE SAID ORGANIC VAPOR.
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) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |