US2746853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco desuckering process
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1952-07-31
•
Granted: 1956-05-22
•
Expires: 1972-07-31
Abstract
No abstract record available.
Inventors
- 👤 Howard L Yowell
- 👤 Donald A Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:31
CPC Classifications
A; A01; A01N; A01N61/00; A01N61/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
THE PROCESS OF DESUCKERING TOBACCO PLANTS WHICH COMPRISES APPLYING TO SAID PLANTS AN AQUEOUS EMULSION OF A PETROLEUM MINERAL WHITE OIL, SAID EMULSION EXHIBITING ABOUT 10 TO 85 VOLUME PERCENT WATER SEPARATION ON STANDING FOR ONE HOUR, SAID PETROLEUM MINERAL WHITE OIL HAVING A SPECIFIC GRAVITY IN THE RANGE OF ABOUT 0.800 TO 0.885, A BOILING RANGE OF ABOUT 550$ TO 1000* F., A VISCOSITY OF SUS AT 100* F. OF 80 TO 370, AND, AS AN EMULSIFYING AGENT, AN OIL SOLUBLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF NON-IONIC AND ANIONIC EMULSIFIER COMPOUND THE PROPORTION OF MINERAL OIL TO EMULSIFIER BEING FROM 90 TO 99.8 VOLUME PERCENT OIL AND 0.2 TO 10 VOLUME PERCENT EMULSIFIER.
Claim 2
Dependent Claim
116 words
THE PROCESS OF DESUCKERING TOBACCO PLANTS WHICH COMPRISES APPLYING TO SAID PLANTS AN AQUEOUS EMULSION OF A PETROLEUM MINERAL WHITE OIL, SAID EMULSION EXHIBITING ABOUT 10 TO 85 VOLUME PERCENT WATER SEPARATION ON STANDING FOR ONE HOUR, SAID PETROLEUM MINERAL WHITE OIL HAVING A SPECIFIC GRAVITY IN THE RANGE OF ABOUT 0.800 TO 0.885, A BOILING RANGE OF ABOUT 550$ TO 1000* F., A VISCOSITY OF SUS AT 100* F. OF 80 TO 370, AND, AS AN EMULSIFYING AGENT, AN OIL SOLUBLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF NON-IONIC AND ANIONIC EMULSIFIER COMPOUND THE PROPORTION OF MINERAL OIL TO EMULSIFIER BEING FROM 90 TO 99.8 VOLUME PERCENT OIL AND 0.2 TO 10 VOLUME PERCENT EMULSIFIER.
References Cited (Backward Citations)
US2560626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |