US3548170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process control by a digital computer
Assignee: ConocoPhillips Co
•
Filing: 1964-11-09
•
Granted: 1970-12-15
•
Expires: 1984-11-09
Abstract
No abstract record available.
Inventors
- 👤 Ronald G Bruce
- 👤 Robert J Fanning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:12
CPC Classifications
G; G05; G05B; G05B15/00; G05B15/02; B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; G05B19/00; G05B19/02; G05B19/04; G05B19/042; G05B19/0423
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3201572A
Cited
US3391275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |