US3260655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film distillation with a helical spring
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1962-05-24
•
Granted: 1966-07-12
•
Expires: 1982-05-24
Abstract
No abstract record available.
Inventors
- 👤 Mcgee Leonard Leo
- 👤 Parker Roger Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:45
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/22; B01D1/222; B01D1/223
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
108 words
A PROCESS FOR VOLATILIZING AND SEPARATING A LIQUID FROM A MIXTURE COMPRISING: DIRECTING THE MIXTURE ONTO THE UPPER REGION OF A CYLINDRICAL SURFACE SUPPORTED AT AN ANGLE TO THE HORIZONTAL, HEATING SAID SURFACE, CONTINUOUSLY TRAVERSING SAID SURFACE WITH A HELICAL SPRING HAVING A LONGITUDINAL AXIS SUBSTANTIALLY PARALLEL TO THE LONGITUDINAL AXIS OF SAID SURFACE, AGITATING SAID FILM FILM OF SAID MIXTURE OVER SAID SURFACE, AGITATING SAID FILM AND ADVANCING THE RESIDUE OF THE MIXTURE DOWNWARDLY ALONG SAID SURFACE; COLLECTING LIQUID VOLATILIZED FROM SAID SPRING AND SAID SURFACE NEAR THHE UPPER REGION OF THE SURFACE AND COLLECTING THE RESIDUE OF SAID MIXTURE NEAR THE LOWER REGION OF SAID SURFACE.
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |