Patent US3104049A successfully refreshed from Google Patents.
US3104049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High purity vacuum systems
Assignee: International Business Machines Corp
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Filing: 1959-12-30
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Granted: 1963-09-17
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Expires: 1979-12-30
Abstract
No abstract record available.
Inventors
- 👤 Dinsdale M J Compton
- 👤 Walter E Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:11
CPC Classifications
H; H01; H01J; H01J41/00; H01J41/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A HIGH VACUUM SYSTEM COMPRISING, IN COMBINATION A VACUUM CONTAINER; A FIRST FLUSHING SYSTEM, INCLUDING CONTROLLABLE INLET AND OUTLET MEANS TO SAID VACUUM CONTAINER; AND A SECOND FLUSHING SYSTEM COMPRISING A CONTAINER OF GETTER MATERIAL OF URANIUM, MEANS FOR HEATING THE GETTER TO A PREDETERMINED TEMPERATURE, AN OPENING TO SAID VACUUM CONTAINER, AND PUMPING MEANS, WHERE SAID CONTAINER OF GETTER MATERIAL, SAID OPENING TO SAID VACUUM CONTAINER, AND SAID PUMPING MEANS ARE CONTROLLABLY CONNECTED TOGETHER.
Claim 2
Dependent Claim
75 words
A HIGH VACUUM SYSTEM COMPRISING, IN COMBINATION A VACUUM CONTAINER; A FIRST FLUSHING SYSTEM, INCLUDING CONTROLLABLE INLET AND OUTLET MEANS TO SAID VACUUM CONTAINER; AND A SECOND FLUSHING SYSTEM COMPRISING A CONTAINER OF GETTER MATERIAL OF URANIUM, MEANS FOR HEATING THE GETTER TO A PREDETERMINED TEMPERATURE, AN OPENING TO SAID VACUUM CONTAINER, AND PUMPING MEANS, WHERE SAID CONTAINER OF GETTER MATERIAL, SAID OPENING TO SAID VACUUM CONTAINER, AND SAID PUMPING MEANS ARE CONTROLLABLY CONNECTED TOGETHER.
References Cited (Backward Citations)
US1651386A
Cited
US2858972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |