US3306058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryostat
Assignee: Individual
•
Filing: 1964-10-23
•
Granted: 1967-02-28
•
Expires: 1984-10-23
Abstract
No abstract record available.
Inventors
- 👤 Keilin Victor Efimovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:49
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/02; F17C3/08; F17C3/085; F17C2221/00; F17C2221/01; F17C2221/014; F17C2221/016; F17C2221/017; F17C2270/00; F17C2270/05; F17C2270/0509
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
253 words
A CRYOSTAT COMPRISING AN EXTERNAL CASE HAVING SIDEWALLS AND A BOTTOM WALL AND OPEN AT THE TOP, A WORKING CHAMBER HAVING SIDEWALLS AND A BOTTOM WALL AND OPEN AT THE TOP FOR RECEIVING A SPECIMEN, SAID CHAMBER BEING DISPOSED IN SAID CASE IN SPACED RELATION TO THE SIDE AND BOTTOM WALLS OF SAID CASE AND WITH THE UPPER EDGE OF THE SIDEWALLS OF SAID CHAMBER DISPOSED BELOW THE UPPER EDGE OF THE SIDEWALLS OF SAID CASE, VACUUM INSULATING MEANS FOR SAID CHAMBER COMPRISING A PARTITION SURROUNDING THE SIDEWALLS OF SAID CHAMBER IN SPACED RELATION THERETO AND DISPOSED IN THE SPACE BETWEEN SAID CHAMBER AND SAID CASE, THE UPPER EDGE OF SAID PARTITION BEING SECURED IN VACUUM TIGHT RELATION TO THE UPPER EDGE OF THE SIDEWALLS OF SAID CHAMBER, SAID PARTITION TERMINATING IN A LOWER EDGE DISPOSED UPWARDLY FROM THE LOWER END OF SAID CHAMBER, A SECOND CONCENTRIC PARTITION DISPOSED OUTWARDLY OF SAID FIRST PARTITION IN SPACED RELATION THERETO AND SPACED INWARDLY FROM THE SIDEWALLS OF SAID CASE, THE LOWER EDGE OF SAID SECOND PARTITION BEING SECURED IN VACUUM TIGHT RELATION TO THE LOWER EDGE OF SAID FIRST PARTITION, THE UPPER OF SAID SECOND PARTITION TERMINATING ADJACENT THE UPPER EDGE OF THE SIDEWALLS OF SAID CASE, AND A HEAT SHIELD SUROUNDING THE SIDEWALLS AND BOTTOM WALL OF SAID CHAMBER BELOW SAID PARTITIONS AND SPACED FROM SAID CHAMBER AND SAID CASE, A REMOVABLE LID CLOSING THE UPPER END OF SAID CASE, MEANS PROVIDING A VACUUM TIGHT CONNECTION BETWEEN SAID LID, THE UPPER EDGE OF SAID
Claim 2
Dependent Claim
253 words
A CRYOSTAT COMPRISING AN EXTERNAL CASE HAVING SIDEWALLS AND A BOTTOM WALL AND OPEN AT THE TOP, A WORKING CHAMBER HAVING SIDEWALLS AND A BOTTOM WALL AND OPEN AT THE TOP FOR RECEIVING A SPECIMEN, SAID CHAMBER BEING DISPOSED IN SAID CASE IN SPACED RELATION TO THE SIDE AND BOTTOM WALLS OF SAID CASE AND WITH THE UPPER EDGE OF THE SIDEWALLS OF SAID CHAMBER DISPOSED BELOW THE UPPER EDGE OF THE SIDEWALLS OF SAID CASE, VACUUM INSULATING MEANS FOR SAID CHAMBER COMPRISING A PARTITION SURROUNDING THE SIDEWALLS OF SAID CHAMBER IN SPACED RELATION THERETO AND DISPOSED IN THE SPACE BETWEEN SAID CHAMBER AND SAID CASE, THE UPPER EDGE OF SAID PARTITION BEING SECURED IN VACUUM TIGHT RELATION TO THE UPPER EDGE OF THE SIDEWALLS OF SAID CHAMBER, SAID PARTITION TERMINATING IN A LOWER EDGE DISPOSED UPWARDLY FROM THE LOWER END OF SAID CHAMBER, A SECOND CONCENTRIC PARTITION DISPOSED OUTWARDLY OF SAID FIRST PARTITION IN SPACED RELATION THERETO AND SPACED INWARDLY FROM THE SIDEWALLS OF SAID CASE, THE LOWER EDGE OF SAID SECOND PARTITION BEING SECURED IN VACUUM TIGHT RELATION TO THE LOWER EDGE OF SAID FIRST PARTITION, THE UPPER OF SAID SECOND PARTITION TERMINATING ADJACENT THE UPPER EDGE OF THE SIDEWALLS OF SAID CASE, AND A HEAT SHIELD SUROUNDING THE SIDEWALLS AND BOTTOM WALL OF SAID CHAMBER BELOW SAID PARTITIONS AND SPACED FROM SAID CHAMBER AND SAID CASE, A REMOVABLE LID CLOSING THE UPPER END OF SAID CASE, MEANS PROVIDING A VACUUM TIGHT CONNECTION BETWEEN SAID LID, THE UPPER EDGE OF SAID
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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) | 1970-02-27 | 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 |