US2981684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of paraffin deposition control
Assignee: ConocoPhillips Co
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Filing: 1958-07-15
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Granted: 1961-04-25
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Expires: 1978-07-15
Abstract
No abstract record available.
Inventors
- 👤 Paul M Barnes
- 👤 Olen L Riggs
- 👤 Albert H Roebuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:54
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/19; C09; C09K; C09K8/00; C09K8/52; C09K8/524; Y; Y10; Y10S; Y10S507/00; Y10S507/927; Y10S507/929; Y10S507/931; Y10S516/00; Y10S516/01; Y10S516/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS OF CONTROLLING DEPOSITION OF PARAFFIN AND THE LIKE FROM CRUDE OIL IN OIL PRODUCING AND TRANSPORTING EQUIPMENT, COMPRISING INCORPORATING IN THE OIL A DISPERSING AGENT CONSISTING ESSENTIALLY OF FROM ABOUT 10 TO 1000 PARTS OF AN ACYLATED HYDROXY COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACETYL TRIBUTYL CITRATE, STEAROYL ETHYL GLYCOLATE, AND LAUROYL AMYL LACTATE, PER MILLION PARTS OF THE OIL.
Claim 2
Dependent Claim
63 words
A PROCESS OF CONTROLLING DEPOSITION OF PARAFFIN AND THE LIKE FROM CRUDE OIL IN OIL PRODUCING AND TRANSPORTING EQUIPMENT, COMPRISING INCORPORATING IN THE OIL A DISPERSING AGENT CONSISTING ESSENTIALLY OF FROM ABOUT 10 TO 1000 PARTS OF AN ACYLATED HYDROXY COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACETYL TRIBUTYL CITRATE, STEAROYL ETHYL GLYCOLATE, AND LAUROYL AMYL LACTATE, PER MILLION PARTS OF THE OIL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |