US2829032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuously determining small amounts of one gas in another
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1954-04-26
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Granted: 1958-04-01
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Expires: 1974-04-26
Abstract
No abstract record available.
Inventors
- 👤 Barley Thomas
- 👤 Elliott Joseph Henderson
- 👤 Kinsey Richard Phillip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:34
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/75; G01N21/77; G01N21/78; G01N21/783; B; B01; B01L; B01L5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
AN ABSORBER UNIT FOR USE IN CONTINUOUSLY DETERMINING VERY SMALL AMOUNTS OF ONE GAS IN ANOTHER IN WHICH THE MIXTURE OF GASES IS CONTACTED CO-CURRENTLY AND CONTINUOUSLY WITH A SOLUTION THAT ABSORBS THE GAS THAT IS PRESENT IN VERY SMALL AMOUNTS AND CHANGES COLOR AS A RESULT, SAID ABSORBER UNIT COMPRISING A HOLLOW COLUMN, CONSISTING ALONG ITS LENGTH OF ARCUATE SECTIONS AND OF PRECISION-BORE CAPILLARY SECTIONS ARRANGED ALTERNATELY.
Claim 2
Dependent Claim
68 words
AN ABSORBER UNIT FOR USE IN CONTINUOUSLY DETERMINING VERY SMALL AMOUNTS OF ONE GAS IN ANOTHER IN WHICH THE MIXTURE OF GASES IS CONTACTED CO-CURRENTLY AND CONTINUOUSLY WITH A SOLUTION THAT ABSORBS THE GAS THAT IS PRESENT IN VERY SMALL AMOUNTS AND CHANGES COLOR AS A RESULT, SAID ABSORBER UNIT COMPRISING A HOLLOW COLUMN, CONSISTING ALONG ITS LENGTH OF ARCUATE SECTIONS AND OF PRECISION-BORE CAPILLARY SECTIONS ARRANGED ALTERNATELY.
References Cited (Backward Citations)
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US2077427A
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DE678100C
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US2356530A
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US2382381A
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US2395489A
Cited
US2430895A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |