Patent US3350846A successfully refreshed from Google Patents.
US3350846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of hydrogen by permeation
Assignee: Tyco International Ltd
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Filing: 1964-12-29
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Granted: 1967-11-07
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Expires: 1984-12-29
Abstract
No abstract record available.
Inventors
- 👤 Alkis C Makrides
- 👤 Maurice A Wright
- 👤 David N Jewett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:19
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/50; C01B3/501; C01B3/503; C01B3/505; C01B2203/00; C01B2203/04; C01B2203/0405
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A PROCESS FOR THE RECOVERY OF HYDROGEN FROM A GASEOUS MIXTURE COMPRISING THE STEPS OF CONTACTING SUCH GASEOUS MIXTURE WITH ONE SIDE OF A NONPOROUS METALLIC MEMBRANE COMPRISING A LAYER OF A GROUP V-B METAL COATED ON BOTH SIDES WITH A CONTINOUS NONPOROUS FILM COMPRISING PALLADIUM; PERMEATING THE HYDROGEN THROUGH
Claim 2
Dependent Claim
50 words
A PROCESS FOR THE RECOVERY OF HYDROGEN FROM A GASEOUS MIXTURE COMPRISING THE STEPS OF CONTACTING SUCH GASEOUS MIXTURE WITH ONE SIDE OF A NONPOROUS METALLIC MEMBRANE COMPRISING A LAYER OF A GROUP V-B METAL COATED ON BOTH SIDES WITH A CONTINOUS NONPOROUS FILM COMPRISING PALLADIUM; PERMEATING THE HYDROGEN THROUGH
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |