Patent US3547475A successfully refreshed from Google Patents.
Patent US3149775A successfully refreshed from Google Patents.
US3149775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum system
Assignee: General Electric Co
•
Filing: 1961-12-13
•
Granted: 1964-09-22
•
Expires: 1981-12-13
Abstract
No abstract record available.
Inventors
- 👤 Pagano Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:06
CPC Classifications
F; F04; F04B; F04B37/00; F04B37/06; F04B37/08; Y; Y10; Y10S; Y10S165/00; Y10S165/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN A SPACE SIMULATING CHAMBER OF THE TYPE IN WHICH THE OPERATION OF MATERIALS AND COMPONENTS AT LOW PRESSURES AND TEMPERATURES IS TO BE EXAMINED, A PUMP CONNECTED TO SAID CHAMBER TO REMOVE GASES THEREFROM, CRYOGENIC MEANS LOCATED IN SAID CHAMBER FOR CONDENSING GASES THEREIN, A FIRST MEANS FOR REMOVING HYDROGEN FROM SAID CHAMBER POSITIONED ALONG THE OUTER SURFACE THEREOF AND A SECOND MEANS FOR REMOVING HYDROGEN FROM SAID CHAMBER POSITIONED WITHIN SAID CHAMBER AND ADAPTED TO BE EXPOSED TO HYDROGEN CONTAINING GASES GENERATED WITHIN SAID CHAMBER DURING OPERATION OF A COMPONENT THEREIN, SAID FIRST AND SECOND MEANS COMPRISING A HYDROGEN PERMEABLE MATERIAL.
Claim 2
Dependent Claim
103 words
IN A SPACE SIMULATING CHAMBER OF THE TYPE IN WHICH THE OPERATION OF MATERIALS AND COMPONENTS AT LOW PRESSURES AND TEMPERATURES IS TO BE EXAMINED, A PUMP CONNECTED TO SAID CHAMBER TO REMOVE GASES THEREFROM, CRYOGENIC MEANS LOCATED IN SAID CHAMBER FOR CONDENSING GASES THEREIN, A FIRST MEANS FOR REMOVING HYDROGEN FROM SAID CHAMBER POSITIONED ALONG THE OUTER SURFACE THEREOF AND A SECOND MEANS FOR REMOVING HYDROGEN FROM SAID CHAMBER POSITIONED WITHIN SAID CHAMBER AND ADAPTED TO BE EXPOSED TO HYDROGEN CONTAINING GASES GENERATED WITHIN SAID CHAMBER DURING OPERATION OF A COMPONENT THEREIN, SAID FIRST AND SECOND MEANS COMPRISING A HYDROGEN PERMEABLE MATERIAL.
References Cited (Backward Citations)
US1124347A
Cited
US1174631A
Cited
US2637625A
Cited
US2570103A
Cited
US2582885A
Cited
US2749293A
Cited
US2773561A
Cited
US2939316A
Cited
US3064364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |