US3264448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature control apparatus
Assignee: Beckman Coulter Inc
•
Filing: 1964-12-29
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Granted: 1966-08-02
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Expires: 1984-12-29
Abstract
No abstract record available.
Inventors
- 👤 Donald E Lehmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:52
CPC Classifications
H; H03; H03L; H03L1/00; H03L1/02; H03L1/04; H03H; H03H9/00; H03H9/02; H03H9/05; H03H9/08; Y; Y10; Y10S; Y10S165/00; Y10S165/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD FOR CONTROLLING THE TEMPERATURE OF A TEMPERATURE-SENSITIVE DEVICE, COMPRISING THE STEPS OF SURROUNDING SAID TEMPERATURE-SENSITIVE DEVICE WITH A SUBSTANCE HAVING A MELTING POINT WITHIN THE OPERATING TEMPERATURE RANGE OF SAID TEMPERATURE-SENSITIVE DEVICE; ADDING HEAT TO SAID SUBSTANCE AT A RATE WHICH TENDS TO MAINTAIN AT LEAST A PORTION OF SAID SUBSTANCE IN A CONSTANT TEMPERATURE, SOLID-LIQUID MIXTURE; AND SUBTRACTING HEAT FROM SAID SUBSTANCE, WHEN NECESSARY, TO MAINTAIN SAID PORTION OF SAID SUBSTANCE IN SAID SOLID-LIQUID MIXTURE.
Claim 2
Independent Claim
78 words
A METHOD FOR CONTROLLING THE TEMPERATURE OF A TEMPERATURE-SENSITIVE DEVICE, COMPRISING THE STEPS OF SURROUNDING SAID TEMPERATURE-SENSITIVE DEVICE WITH A SUBSTANCE HAVING A MELTING POINT WITHIN THE OPERATING TEMPERATURE RANGE OF SAID TEMPERATURE-SENSITIVE DEVICE; ADDING HEAT TO SAID SUBSTANCE AT A RATE WHICH TENDS TO MAINTAIN AT LEAST A PORTION OF SAID SUBSTANCE IN A CONSTANT TEMPERATURE, SOLID-LIQUID MIXTURE; AND SUBTRACTING HEAT FROM SAID SUBSTANCE, WHEN NECESSARY, TO MAINTAIN SAID PORTION OF SAID SUBSTANCE IN SAID SOLID-LIQUID MIXTURE.
References Cited (Backward Citations)
US1994229A
Cited
US2338691A
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US2363375A
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US2524886A
Cited
US3177933A
Cited
US3195620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |