US3549327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and analyzer for hydrogen carbon monoxide and hydrocarbons in exhaust gases
Assignee: ALLEGHENY INTERNATIONAL MEDICAL TECHNOLOGY Inc
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Filing: 1967-12-05
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Granted: 1970-12-22
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Expires: 1987-12-05
Abstract
No abstract record available.
Inventors
- 👤 Gordon J Fergusson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:35
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/20; G01N25/22; G01N25/28; G01N25/30; G01N25/32; G01N25/18; Y; Y10; Y10T; Y10T436/00; Y10T436/20; Y10T436/204998; Y10T436/205831; Y10T436/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1644951A
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US1530202A
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US1578666A
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US2053121A
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US2393220A
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US3032402A
Cited
US2949765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |