US3076757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paraffin control composition and method
Assignee: Halliburton Co
•
Filing: 1960-09-15
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Granted: 1963-02-05
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Expires: 1980-09-15
Abstract
No abstract record available.
Inventors
- 👤 John A Knox
- 👤 Aleck B Featherston
- 👤 Reginald M Lasater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:28
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/52; C09K8/524; Y; Y10; Y10S; Y10S507/00; Y10S507/927; Y10S507/929; Y10S507/931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A METHOD OF INHIBITING THE FORMATION OF PARAFFIN ON SURFACES PAST WHICH OIL IN CONDUCTED, COMPRISING THE STEP OF: CONTACTING SAID SURFACES WHICH AN AQUEOUUS SOLUTION CONTAINING A QUANTITY OF SLOWLY SOLUBLE POLYPHOSPHATES SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL POLYPHOSPHATES, ALKALI METAL ALKALINE EARTH METAL POLYPHOSPHATES, AND ALKALI METAL CALCIUM MAGNESIUM POLYPHOSPHATES.
Claim 2
Independent Claim
54 words
A METHOD OF INHIBITING THE FORMATION OF PARAFFIN ON SURFACES PAST WHICH OIL IN CONDUCTED, COMPRISING THE STEP OF: CONTACTING SAID SURFACES WHICH AN AQUEOUUS SOLUTION CONTAINING A QUANTITY OF SLOWLY SOLUBLE POLYPHOSPHATES SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL POLYPHOSPHATES, ALKALI METAL ALKALINE EARTH METAL POLYPHOSPHATES, AND ALKALI METAL CALCIUM MAGNESIUM POLYPHOSPHATES.
References Cited (Backward Citations)
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US2602778A
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US2836559A
Cited
US2873253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |