US3098155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of and apparatus for the production of high vacua
Assignee: ARTHUR PFEIFFER GmbH
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Filing: 1960-03-09
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Granted: 1963-07-16
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Expires: 1980-03-09
Abstract
No abstract record available.
Inventors
- 👤 Becker Willi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:07
CPC Classifications
H; H01; H01J; H01J41/00; H01J41/12; F; F04; F04B; F04B37/00; F04B37/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
APPARATUS FOR ATTAINING A HIGHA VACCUM IN A VESSEL BY THE GETTER PRINCIPLE, COMPRISING TWO COMMUNICATING CASINGS OF WHICH ONE IS ADAPTED TO BE CONNECTED WITH A VESSEL TO BE EVACUATED AND THE SECOND CASING IS ADAPTED TO BE CONNECTED WITH A HIGH VACUUM PUMP, MEANS OPERABLE TO DELIVER TO THE FIRST-MENTIONED CASING A LIQUID METAL SELECTED FROM THE GROUP CONSISTING OF GALLIUM AND A GALLIUM ALLOY TO EXPOSE CONSISTING OF GALLIUM AND GALIN THE FIRST-MENTIONED CASING WHEN A VACUUM IN MAINTAINED THEREIN BY SAID HIGH VACUUM PUMP WHEN CONNECTED TO THE SECOND CASING WHEREBY GAS IS OBSORBED BY THE LIQUID METAL, MEANS TO DELIVER A GAS-CHARGED LIQUID METAL FROM THE FIRST-MENTIONED CASING TO THE SECOND-MENTIONED CASING, MEANS COOPERATING WITH THE SECOND-MENTIONED CASING TO EFFECT DEGASSING OF THE GAS-CHARGED LIQUID METAL DELIVERED
Claim 2
Dependent Claim
132 words
APPARATUS FOR ATTAINING A HIGHA VACCUM IN A VESSEL BY THE GETTER PRINCIPLE, COMPRISING TWO COMMUNICATING CASINGS OF WHICH ONE IS ADAPTED TO BE CONNECTED WITH A VESSEL TO BE EVACUATED AND THE SECOND CASING IS ADAPTED TO BE CONNECTED WITH A HIGH VACUUM PUMP, MEANS OPERABLE TO DELIVER TO THE FIRST-MENTIONED CASING A LIQUID METAL SELECTED FROM THE GROUP CONSISTING OF GALLIUM AND A GALLIUM ALLOY TO EXPOSE CONSISTING OF GALLIUM AND GALIN THE FIRST-MENTIONED CASING WHEN A VACUUM IN MAINTAINED THEREIN BY SAID HIGH VACUUM PUMP WHEN CONNECTED TO THE SECOND CASING WHEREBY GAS IS OBSORBED BY THE LIQUID METAL, MEANS TO DELIVER A GAS-CHARGED LIQUID METAL FROM THE FIRST-MENTIONED CASING TO THE SECOND-MENTIONED CASING, MEANS COOPERATING WITH THE SECOND-MENTIONED CASING TO EFFECT DEGASSING OF THE GAS-CHARGED LIQUID METAL DELIVERED
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |