US2539082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separatory funnel for analysis of oils, fats, soaps, and like substances
Assignee: Individual
•
Filing: 1945-09-25
•
Granted: 1951-01-23
•
Expires: 1965-09-25
Abstract
No abstract record available.
Inventors
- 👤 Hustinx Marie Joseph Hu Edmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:17
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L3/56; B01L3/569
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A HEATABLE SEPARATORY FUNNEL WHICH CONSISTS OF A BOTTLE HAVING A GRADUALLY SLOPING UPPER PORTION UNITING INTO A CENTRAL TUBULAR OUTLET, SAID OUTLET EXTENDING A SHORT DISTANCE UPWARDLY AND HAVING A GROUND GLASS 2-WAY STOPCOCK THEREIN, ONE PASSAGE OF WHICH IS OPERABLE TO OPEN THE PASSAGE THROUGH SAID TUBULAR OUTLET WHEN ARRANGED TO COINCIDE THEREWITH AND ANOTHER PASSAGE OF WHICH IS OPERABLE TO OPEN A PASSAGE FROM SAID BOTTLE THROUGH SAID STOPPER TO THE OUTSIDE AIR WHEN SAID FIRST PASSAGE IS NOT IN THE OPEN POSITION, AND HAVING A GROUND GLASS OPENING IN THE SIDE WALL THEREOF LOCATED SUBSTANTIALLY IN THE CENTER THEREOF CLOSED BY A GROUND GLASS STOPPER SO THAT WHEN IN UPRIGHT POSITION SAID FUNNEL MAY BE HEATED TO CARRY OUT A CHEMICAL REACTION AND WHEN INVERTED MAY BE USED AS A SEPARATORY FUNNEL AND SAID TUBULAR OUTLET BETWEEN THE UPPER PORTION OF THE BOTTLE AND THE GLASS STOPCOCK BEING GRADUATED.
Claim 2
Dependent Claim
153 words
A HEATABLE SEPARATORY FUNNEL WHICH CONSISTS OF A BOTTLE HAVING A GRADUALLY SLOPING UPPER PORTION UNITING INTO A CENTRAL TUBULAR OUTLET, SAID OUTLET EXTENDING A SHORT DISTANCE UPWARDLY AND HAVING A GROUND GLASS 2-WAY STOPCOCK THEREIN, ONE PASSAGE OF WHICH IS OPERABLE TO OPEN THE PASSAGE THROUGH SAID TUBULAR OUTLET WHEN ARRANGED TO COINCIDE THEREWITH AND ANOTHER PASSAGE OF WHICH IS OPERABLE TO OPEN A PASSAGE FROM SAID BOTTLE THROUGH SAID STOPPER TO THE OUTSIDE AIR WHEN SAID FIRST PASSAGE IS NOT IN THE OPEN POSITION, AND HAVING A GROUND GLASS OPENING IN THE SIDE WALL THEREOF LOCATED SUBSTANTIALLY IN THE CENTER THEREOF CLOSED BY A GROUND GLASS STOPPER SO THAT WHEN IN UPRIGHT POSITION SAID FUNNEL MAY BE HEATED TO CARRY OUT A CHEMICAL REACTION AND WHEN INVERTED MAY BE USED AS A SEPARATORY FUNNEL AND SAID TUBULAR OUTLET BETWEEN THE UPPER PORTION OF THE BOTTLE AND THE GLASS STOPCOCK BEING GRADUATED.
References Cited (Backward Citations)
US1034170A
Cited
US1074475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |