US3296773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adsorbent-coated thermal panels
Assignee: Union Carbide Corp
•
Filing: 1964-03-24
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Granted: 1967-01-10
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Expires: 1984-03-24
Abstract
No abstract record available.
Inventors
- 👤 Russell A Hemstreet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:36
CPC Classifications
B; B01; B01D; B01D8/00; F; F28; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/047; F28D1/0477; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/14; F28F1/22; F28F13/00; F28F13/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
PROCESS FOR CREATING A VACUUM IN A CLOSED CHAMBER CONTAINING A MIXTURE OF GASES, SOME OF WHICH CONDENSE AND FREEZE AT A TEMPERATURE OF WHICH THE REMAINDER ARE UNCONDENSED, WHICH COMPRISES PROVIDING IN GASEOUS COMMUNICATION WITH SAID CLOSED CHAMBER A CRYOSORPTION PANEL BAFFLED BY A CONDENSATION ARRAY AND OPTICALLY SHIELDED BY A RADIATION SHEILD, SAID CRYOSORPTION PANEL, CONDENSATION ARRAY AND RADIATION SHIELD EACH HAVING COOLING MEANS; AND SQUENTIALLY COOLING FIRST THE RADIATION SHIELD TO A PREDETERMINED LOW TEMPERATURE, BUT NOT SUFFICIENTLY LOW TO CONDENSE ANY OF THE GASES OF THE MIXTURE, SECONDLY
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |