US3214937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant temperature bath
Assignee: Cannon Instrument Co
•
Filing: 1963-02-26
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Granted: 1965-11-02
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Expires: 1983-02-26
Abstract
No abstract record available.
Inventors
- 👤 Elizabeth L Cannon
- 👤 Robert E Manning
- 👤 Wallis A Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:13
CPC Classifications
B; B01; B01L; B01L7/00; B01L7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A CONSTANT LOW TEMPERATURE BATH COMPRISING A BATH LIQUID WHICH IS TO BE MAINTAINED AT A CONSTANT TEMPERATURE BELOW ROOM TEMPERATURE, A HOLLOW MEMBER OF HEAT CONDUCTING MATERIAL EXTENDING INTO THE BATH LIQUID IN HEAT EXCHANGE RELATIONSHIP THEREWITH, A RESERVOIR FOR A COOLANT IN COMMUNICATION WITH THE MEMBER, SAID COOLANT BEING ADAPTED TO FLOW FROM THE RESERVOIR INTO THE MEMBER AND THEREBY COOL THE BATH LIQUID, MEANS TO REDUCE THE FLOW IN THE MEMBER, AND MEANS IN THE BATH LIQUID
Claim 2
Dependent Claim
80 words
A CONSTANT LOW TEMPERATURE BATH COMPRISING A BATH LIQUID WHICH IS TO BE MAINTAINED AT A CONSTANT TEMPERATURE BELOW ROOM TEMPERATURE, A HOLLOW MEMBER OF HEAT CONDUCTING MATERIAL EXTENDING INTO THE BATH LIQUID IN HEAT EXCHANGE RELATIONSHIP THEREWITH, A RESERVOIR FOR A COOLANT IN COMMUNICATION WITH THE MEMBER, SAID COOLANT BEING ADAPTED TO FLOW FROM THE RESERVOIR INTO THE MEMBER AND THEREBY COOL THE BATH LIQUID, MEANS TO REDUCE THE FLOW IN THE MEMBER, AND MEANS IN THE BATH LIQUID
References Cited (Backward Citations)
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US2096088A
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US2437332A
Cited
US2445294A
Cited
US2580210A
Cited
US2674859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |