Patent US2742398A successfully refreshed from Google Patents.
US2742398A
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Method of removing deposits of wax and like materials
Assignee: Texaco Development Corp
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Filing: 1951-06-09
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Granted: 1956-04-17
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Expires: 1971-06-09
Abstract
No abstract record available.
Inventors
- 👤 Claude E Zobell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:09
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/52; C09K8/524; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/859; Y10S435/863; Y10S435/866; Y10S435/872; Y10S435/911; Y10S435/913; Y10S435/918; Y10S507/00; Y10S507/927; Y10S507/929; Y10S507/931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A METHOD OF DISSOLVING, REMOVING, AND INHIBITING DEPOSITION OF WAX AND LIKE MATERIAL IN PIPE LINES FOR HYDROCARBONS, OIL WELLS AND LIKE SIMILAR LOCATIONS COMPRISING THE STEP OF INTERMITTENTLY CONTACTING SAID WAX DEPOSITS WITH A MICROBIOLOGICAL NUTRIENT MEDIUM HAVING RELATIVELY FINE PARTICLES OF WAX SUSPENDED THEREIN AND INOCULATED WITH A PLURALTITY OF DIFFERENT SPECIES OF WAX-CONSIMING MICROORGANISMS, EACH SPECIES BEING SELECTED IN ACCORDANCE WITH ITS ENVIRONMENTAL CHARACTERISTICS SO THAT ONE OR MORE SPECIES IS EFFETIVE ON SAID WAX DEPOSITS THROUGHOUT SUBSTANTIALLY THE ENTIRE RANGE OF CHANGES IN ENVIRONMENTAL CHARACTERISTICS IN SAID LOCATIONS.
Claim 2
Independent Claim
92 words
A METHOD OF DISSOLVING, REMOVING, AND INHIBITING DEPOSITION OF WAX AND LIKE MATERIAL IN PIPE LINES FOR HYDROCARBONS, OIL WELLS AND LIKE SIMILAR LOCATIONS COMPRISING THE STEP OF INTERMITTENTLY CONTACTING SAID WAX DEPOSITS WITH A MICROBIOLOGICAL NUTRIENT MEDIUM HAVING RELATIVELY FINE PARTICLES OF WAX SUSPENDED THEREIN AND INOCULATED WITH A PLURALTITY OF DIFFERENT SPECIES OF WAX-CONSIMING MICROORGANISMS, EACH SPECIES BEING SELECTED IN ACCORDANCE WITH ITS ENVIRONMENTAL CHARACTERISTICS SO THAT ONE OR MORE SPECIES IS EFFETIVE ON SAID WAX DEPOSITS THROUGHOUT SUBSTANTIALLY THE ENTIRE RANGE OF CHANGES IN ENVIRONMENTAL CHARACTERISTICS IN SAID LOCATIONS.
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) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |