US2608070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for distillation of low boiling point liquids
Assignee: Individual
•
Filing: 1946-02-20
•
Granted: 1952-08-26
•
Expires: 1966-02-20
Abstract
No abstract record available.
Inventors
- 👤 Kapitza Peter Leonidovitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:22
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/044; F25J3/04006; F25J3/04048; F25J3/0406; F25J3/04072; F25J3/04248; F25J3/04284; F25J3/0429; F25J3/04296; F25J3/04327; F25J3/04333; F25J3/04351; F25J3/04369; F25J3/04375; F25J3/04381; F25J3/04642; F25J3/04648; F25J3/04654; F25J3/0466; F25J2200/00; F25J2200/40; F25J2200/50; F25J2200/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A METHOD OF RECTIFICATION AND FRACTIONAL DISTILLATION OF LIQUIDS BOILING AT LOW TEMPERARTURES, COMPRISING REMOVING AT LEAST ONE OF THE MOST VOLATILE FRACTIONS OF THE COMPOSITION UNDERGOING FRACTION ATOM FROM A FIRST POINT AT THE TOP PORTION OF A RECTIFICATION ZONE, COMPRESSING AT LEAST A PART OF THE FRACTION REMOVED AT A TEMPERATURE LEVEL CORRESPONDING SUBSTANTIALLY TO THE TEMPERATURE AT THE TOP OF SAID RECTIFICATION ZONE
Claim 2
Independent Claim
66 words
A METHOD OF RECTIFICATION AND FRACTIONAL DISTILLATION OF LIQUIDS BOILING AT LOW TEMPERARTURES, COMPRISING REMOVING AT LEAST ONE OF THE MOST VOLATILE FRACTIONS OF THE COMPOSITION UNDERGOING FRACTION ATOM FROM A FIRST POINT AT THE TOP PORTION OF A RECTIFICATION ZONE, COMPRESSING AT LEAST A PART OF THE FRACTION REMOVED AT A TEMPERATURE LEVEL CORRESPONDING SUBSTANTIALLY TO THE TEMPERATURE AT THE TOP OF SAID RECTIFICATION ZONE
References Cited (Backward Citations)
US1449291A
Cited
US1521115A
Cited
US1696558A
Cited
US2095809A
Cited
US2180435A
Cited
US2270852A
Cited
US2355167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |