Patent US2676259A successfully refreshed from Google Patents.
Patent US3387969A successfully refreshed from Google Patents.
US3387969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxygen scavenging method
Assignee: United States Atomic Energy Commission
•
Filing: 1965-08-02
•
Granted: 1968-06-11
•
Expires: 1985-08-02
Abstract
No abstract record available.
Inventors
- 👤 Stanley B Skladzien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:48
CPC Classifications
C; C22; C22B; C22B26/00; C22B26/10; Y; Y10; Y10S; Y10S266/00; Y10S266/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A METHOD OF REMOVING OXIDE FROM ALKALI METAL COMPRISING FLOWING SAID ALKALI METAL PAST A MEMBRANE OF ZIRCONIUM OR ZIRCONIUM ALLOY MAINTAINED AT AN ELEVATED TEMPERATURE, MEANWHILE FLOWING A CALCIUM-CONTAINING ALLOY ON THE OTHER SIDE OF SAID MEMBRANE.
Claim 2
Independent Claim
38 words
A METHOD OF REMOVING OXIDE FROM ALKALI METAL COMPRISING FLOWING SAID ALKALI METAL PAST A MEMBRANE OF ZIRCONIUM OR ZIRCONIUM ALLOY MAINTAINED AT AN ELEVATED TEMPERATURE, MEANWHILE FLOWING A CALCIUM-CONTAINING ALLOY ON THE OTHER SIDE OF SAID MEMBRANE.
References Cited (Backward Citations)
US2813019A
Cited
US2815277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |