US3497449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlling a continuous process by concentration measurements
Assignee: Mobil Oil AS
•
Filing: 1966-05-17
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Granted: 1970-02-24
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Expires: 1986-05-17
Abstract
No abstract record available.
Inventors
- 👤 Richard J Urban
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:35
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/24; C10G47/00; C10G47/36; G; G01; G01N; G01N5/00; Y; Y10; Y10S; Y10S208/00; Y10S208/01; Y10T; Y10T436/00; Y10T436/12; Y10T436/18; Y10T436/188; Y10T436/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3000812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |