US2903243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsion treater
Assignee: Salt Water Control Inc
•
Filing: 1957-02-19
•
Granted: 1959-09-08
•
Expires: 1977-02-19
Abstract
No abstract record available.
Inventors
- 👤 Ransome W Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:28
CPC Classifications
C; C10; C10G; C10G33/00; B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/04; B01D17/042; Y; Y10; Y10S; Y10S159/00; Y10S159/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A METHOD OF PROTECTING A HEATING TUBE ELEMENT FROM SCALE FORMATION WHICH TUBE ELEMENT IS SUBJECTED ON ONE SIDE OT AN OIL-WATER LIQ@UID MIXTURE HAVING A SCALE FORMING MINERAL CONSTITUENT, AND ON THE OTHER SIDE A HEATING FLUID, WHICH METHOD COMPRISES FIRST COATING THE TUBE ON THE LIQUID MIXTURE SIDE WITH A PREFERENTIALLY OIL WETTABLE COATING, THEN PASSING THE OIL-WATER LIQUID OVER THE COATED SIDE OF THE TUBE, WHEREBY SAID COATED SURFACE IS ADDITIONALLY
Claim 2
Independent Claim
74 words
A METHOD OF PROTECTING A HEATING TUBE ELEMENT FROM SCALE FORMATION WHICH TUBE ELEMENT IS SUBJECTED ON ONE SIDE OT AN OIL-WATER LIQ@UID MIXTURE HAVING A SCALE FORMING MINERAL CONSTITUENT, AND ON THE OTHER SIDE A HEATING FLUID, WHICH METHOD COMPRISES FIRST COATING THE TUBE ON THE LIQUID MIXTURE SIDE WITH A PREFERENTIALLY OIL WETTABLE COATING, THEN PASSING THE OIL-WATER LIQUID OVER THE COATED SIDE OF THE TUBE, WHEREBY SAID COATED SURFACE IS ADDITIONALLY
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) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |