US3137551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultra high vacuum device
Assignee: Individual
•
Filing: 1959-10-02
•
Granted: 1964-06-16
•
Expires: 1979-10-02
Abstract
No abstract record available.
Inventors
- 👤 John T Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:37
CPC Classifications
B; B01; B01D; B01D8/00; F; F04; F04F; F04F9/00; Y; Y10; Y10S; Y10S55/00; Y10S55/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A VACUUM TRAP COMPRISING A HOLLOW TUBULAR MEMBER, A COOLING FLUID TANK COMPLETELY SUSPENDED WITHIN SAID TUBULAR MEMBER, SAID TANK BEING MADE OF A HIGH THERMAL CAPACITY METAL, MEANS FOR SUPPORTING SAID TANK WITHIN SAID MEMBER INCLUDING A VACUUM SEAL BETWEN SAID TANK AND SAID MEMBER THAT FORMS A VACUUM CHAMBER THEREB ETWEEN, INLET AND OUTLET MEANS COMMUNICATING WITH THE INTERIOR OF SAID TANK, SAID TANK DEFINING A PASSAGEWAY THERETHROUGH EXTENDING IN COAXIAL RELATION TO AND COMMUNICATING WITH AXIALLY SPACED REGIONS OF SAID TUBULAR MEMBER, AND A COOLING STRUCTURE SUPPORTED ENGAGING THE INNER WALL OF SAID TANK, AND A PLURALITY OF BAFFLES MOUNTED ON SAID SUPPORT AND ISPOSED INAN ARRAR TO PERMIT AIR TO PASS THERETHROUGH.
Claim 2
Dependent Claim
116 words
A VACUUM TRAP COMPRISING A HOLLOW TUBULAR MEMBER, A COOLING FLUID TANK COMPLETELY SUSPENDED WITHIN SAID TUBULAR MEMBER, SAID TANK BEING MADE OF A HIGH THERMAL CAPACITY METAL, MEANS FOR SUPPORTING SAID TANK WITHIN SAID MEMBER INCLUDING A VACUUM SEAL BETWEN SAID TANK AND SAID MEMBER THAT FORMS A VACUUM CHAMBER THEREB ETWEEN, INLET AND OUTLET MEANS COMMUNICATING WITH THE INTERIOR OF SAID TANK, SAID TANK DEFINING A PASSAGEWAY THERETHROUGH EXTENDING IN COAXIAL RELATION TO AND COMMUNICATING WITH AXIALLY SPACED REGIONS OF SAID TUBULAR MEMBER, AND A COOLING STRUCTURE SUPPORTED ENGAGING THE INNER WALL OF SAID TANK, AND A PLURALITY OF BAFFLES MOUNTED ON SAID SUPPORT AND ISPOSED INAN ARRAR TO PERMIT AIR TO PASS THERETHROUGH.
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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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |