US3598518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing a container with an oxygen-free gas
Assignee: Toshiba Corp
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Filing: 1968-04-08
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Granted: 1971-08-10
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Expires: 1988-04-08
Abstract
Abstract METHOD OF PROVIDING A CONTAINER WITH AN OXYGEN-FREE GAS COMPRISING PURGING THE CONTAINER WITH A HYDROGEN CONTAINING GAS, WITHDRAWING THE GASEOUS MIXTURE FROM THE CONTAINER, CATALYTICALLY REACTING THE OXYGEN AND HYDROGEN TO FORM WATER, REMOVING THE WATER AND RECYCLING THE GAS TO THE CONTAINER.
Inventors
- 👤 Eizo Goto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:00
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/14; B01D; B01D53/00; B01D53/34; B01D53/46; B65; B65D; B65D90/00; B65D90/22; B65D90/38; B65D90/44
Claims Analysis
Total Claims: 0
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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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |