US3407646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit for controlling analysis of automobile exhaust gas
Assignee: Mobil Oil AS
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Filing: 1965-10-04
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Granted: 1968-10-29
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Expires: 1985-10-04
Abstract
No abstract record available.
Inventors
- 👤 Alfred E Traver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:00
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/27; G01N21/274; G01M; G01M15/00; G01M15/04; G01M15/10; G01M15/102; G01M15/108; G01N33/00; G01N33/0004; G01N33/0006; G01N33/0009; G01N33/0062; G01N33/0063
Claims Analysis
Total Claims: 0
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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) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |