US3335545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas separation by differential permeation
Assignee: General Electric Co
•
Filing: 1965-07-01
•
Granted: 1967-08-15
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Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 Walter L Robb
- 👤 Donald L Reinhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:34
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/38; B01D53/00; B01D53/22; B01D53/228; Y; Y02; Y02C; Y02C20/00; Y02C20/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN A PROCESS FOR THE ALTERATION OF THE COMPOSITION OF A MIXTURE OF GASES WHEREIN THE INITIAL MIXTURE OF GASES IS BROUGHT INTO CONTACT WITH ONE SIDE OF A PERMEABLE MEMBRANE AND A DIFFERENCE IN PARTIAL PRESSURE FOR SPECIFICGASEOUS COMPONENTS IS MAINTAINED BETWEEN SAID ONE SIDE AND THE OPPOSITE SIDE OF THE SAID MEMBRANE WHEREBY SAID SPECIFIC GASEOUS COMPONENTS PERMEATE THROUGH SAID FILM TO PRODUCE A GAS MIXTURE ON SAID OPPOSITE SIDE ALTERED FROM THE COMPOSITION OF THE INITIAL MIXTURE, THE IMPROVEMENT COMPRISING THE STEP OF: (A) CONDUCTING THE PERMEATION OF SAID SPECIFIC COMPONENTS THROUGH A THIN STATIONARY LIQUID FILM.
Claim 2
Dependent Claim
100 words
IN A PROCESS FOR THE ALTERATION OF THE COMPOSITION OF A MIXTURE OF GASES WHEREIN THE INITIAL MIXTURE OF GASES IS BROUGHT INTO CONTACT WITH ONE SIDE OF A PERMEABLE MEMBRANE AND A DIFFERENCE IN PARTIAL PRESSURE FOR SPECIFICGASEOUS COMPONENTS IS MAINTAINED BETWEEN SAID ONE SIDE AND THE OPPOSITE SIDE OF THE SAID MEMBRANE WHEREBY SAID SPECIFIC GASEOUS COMPONENTS PERMEATE THROUGH SAID FILM TO PRODUCE A GAS MIXTURE ON SAID OPPOSITE SIDE ALTERED FROM THE COMPOSITION OF THE INITIAL MIXTURE, THE IMPROVEMENT COMPRISING THE STEP OF: (A) CONDUCTING THE PERMEATION OF SAID SPECIFIC COMPONENTS THROUGH A THIN STATIONARY LIQUID FILM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |