US3306829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic stirrer in a still
Assignee: ARTHUR H THOMAS CO
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Filing: 1966-04-27
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Granted: 1967-02-28
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Expires: 1986-04-27
Abstract
No abstract record available.
Inventors
- 👤 Edward B Patterson
- 👤 John Y Steel
- 👤 Bibie John Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:17
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/06; B01F; B01F33/00; B01F33/45; B01F33/452; Y; Y10; Y10S; Y10S159/00; Y10S159/07; Y10S203/00; Y10S203/02; Y10S203/11; Y10S203/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A APPARATUS COMPRISING A FLASK ADAPTED TO CONTAIN A LIQUID FOR DISTILLATION, A MAGNETIC MEMBER DISPOSED IN SAID FLASK, UNITARY MEANS FOR HEATING LIQUID IN THE FLASK AND CAUSING SAID MEMBER TO AGITATE THE LIQUID IN THE FLASK, A RECEIVER, ELONGATED CONDUIT MEANS FOR CONVEYING VAPORS OF SAID LIQUID BEING DISTILLED FROM THE FLASK TO SAID RECEIVER, MEANS IN ASSOCIATION WITH THE RECEIVER FOR COOLING THE RECEIVER, AND MEANS FOR EVACUATING THE RECEIVER TO ASSIST TRANSFER OF VAPORS FROM THE FLASK TO THE RECEIVER, SAID FLASK BEING PROVIDED WITH FIRST AND SECOND NECK PORTIONS, A VESSEL HAVING AN INTEGRAL DEPENDING DISCHARGE PORTION, SAID DEPENDING DISCHARGE PORTION BEING TELESCOPED INTO SAID SECOND NECK PORTION AND SEALED THEREBETWEEN BY A GROUND GLASS JOINT, MEANS FOR SELECTIVELY
Claim 2
Independent Claim
124 words
A APPARATUS COMPRISING A FLASK ADAPTED TO CONTAIN A LIQUID FOR DISTILLATION, A MAGNETIC MEMBER DISPOSED IN SAID FLASK, UNITARY MEANS FOR HEATING LIQUID IN THE FLASK AND CAUSING SAID MEMBER TO AGITATE THE LIQUID IN THE FLASK, A RECEIVER, ELONGATED CONDUIT MEANS FOR CONVEYING VAPORS OF SAID LIQUID BEING DISTILLED FROM THE FLASK TO SAID RECEIVER, MEANS IN ASSOCIATION WITH THE RECEIVER FOR COOLING THE RECEIVER, AND MEANS FOR EVACUATING THE RECEIVER TO ASSIST TRANSFER OF VAPORS FROM THE FLASK TO THE RECEIVER, SAID FLASK BEING PROVIDED WITH FIRST AND SECOND NECK PORTIONS, A VESSEL HAVING AN INTEGRAL DEPENDING DISCHARGE PORTION, SAID DEPENDING DISCHARGE PORTION BEING TELESCOPED INTO SAID SECOND NECK PORTION AND SEALED THEREBETWEEN BY A GROUND GLASS JOINT, MEANS FOR SELECTIVELY
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |