Patent US2932593A successfully refreshed from Google Patents.
US2932593A
Expired / Lapsed
US
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Process for cleaning pipe lines
Assignee: Individual
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Filing: 1957-11-25
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Granted: 1960-04-12
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Expires: 1977-11-25
Abstract
No abstract record available.
Inventors
- 👤 Glenn D Millis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:49
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/032; B08B9/0321; B08B2230/00; B08B2230/01; F; F16; F16L; F16L2101/00; F16L2101/10; F16L2101/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
THE METHOD FOR CLEANING PARAFFIN ADHERED TO THE WALLS OF THE FLOW LINES CARRYING OIL FROM THE WELL TO THE TREATER AND STORAGE, WHICH COMPRISES HEATING OIL FLOWING FROM THE WELL UNDER WELL PRESSURE, MIXING HOT WATER AND STEAM WITH THE HEATED OIL IN THE FLOW LINE CARRYING THE HEATED OIL, AND FORCING THE HOT MIXTURE OF HOT OIL, STEAM AND HOT WATER THROUGH THE FLOW LINE TO BE CLEANED.
Claim 2
Independent Claim
70 words
THE METHOD FOR CLEANING PARAFFIN ADHERED TO THE WALLS OF THE FLOW LINES CARRYING OIL FROM THE WELL TO THE TREATER AND STORAGE, WHICH COMPRISES HEATING OIL FLOWING FROM THE WELL UNDER WELL PRESSURE, MIXING HOT WATER AND STEAM WITH THE HEATED OIL IN THE FLOW LINE CARRYING THE HEATED OIL, AND FORCING THE HOT MIXTURE OF HOT OIL, STEAM AND HOT WATER THROUGH THE FLOW LINE TO BE CLEANED.
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) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |