Patent DE236736C successfully refreshed from Google Patents.
Patent FR1368798A successfully refreshed from Google Patents.
Patent US2624450A successfully refreshed from Google Patents.
US2624450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispersed getter element and method of manufacture thereof
Assignee: The General Electric Company PLC
•
Filing: 1950-03-22
•
Granted: 1953-01-06
•
Expires: 1970-03-22
Abstract
No abstract record available.
Inventors
- 👤 Britten Leslie Frederic
- 👤 Jenkins Ronald Osmond
- 👤 Moss John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:05
CPC Classifications
H; H01; H01J; H01J7/00; H01J7/14; H01J7/18; H01J7/183; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/94; Y10S72/00; Y10S72/70; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929; Y10T428/00; Y10T428/12; Y10T428/12389; Y10T428/12403; Y10T428/12493; Y10T428/12708; Y10T428/12729; Y10T428/12736; Y10T428/1275; Y10T428/12757; Y10T428/12764; Y10T428/12771; Y10T428/12861; Y10T428/12882; Y10T428/12931; Y10T428/12986; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2942; Y10T428/2944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A DISPERSED GETTER ELEMENT COMPRISING A CORE OF AN ALKALINE EARTH METAL, AN INNER SHEATH SURROUNDING THE CORE, SAID INNER SHEATH BEING OF A METAL WHICH IS STABLE IN AIR AND HAS A LOWER MELTING POINT THAN THE ALKALINE EARTH METAL, AND AN OUTER SHEATH HAVING AN APERTURE THEREIN AND SURROUNDING THE INNER SHEATH, SAID OUTER SHEATH BEING OF A METAL WHICH IS STABLE IN AIR AND HAS A HIGHER MELTING POINT THAN THE ALKALINE EARTH METAL.
Claim 2
Dependent Claim
77 words
A DISPERSED GETTER ELEMENT COMPRISING A CORE OF AN ALKALINE EARTH METAL, AN INNER SHEATH SURROUNDING THE CORE, SAID INNER SHEATH BEING OF A METAL WHICH IS STABLE IN AIR AND HAS A LOWER MELTING POINT THAN THE ALKALINE EARTH METAL, AND AN OUTER SHEATH HAVING AN APERTURE THEREIN AND SURROUNDING THE INNER SHEATH, SAID OUTER SHEATH BEING OF A METAL WHICH IS STABLE IN AIR AND HAS A HIGHER MELTING POINT THAN THE ALKALINE EARTH METAL.
References Cited (Backward Citations)
US441884A
Cited
US978846A
Cited
FR513665A
Cited
US1756568A
Cited
DE707127C
Cited
US2180714A
Cited
US2502070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |