US2966235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of gases by diffusion through silicone rubber
Assignee: Selas Corp of America
•
Filing: 1958-09-24
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Granted: 1960-12-27
•
Expires: 1978-09-24
Abstract
No abstract record available.
Inventors
- 👤 Kammermeyer Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:01
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/22; Y; Y10; Y10S; Y10S159/00; Y10S159/27
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
IN A METHOD OF SEPARATING CARBON DIOXIDE FROM A GAS MIXTURE CONSISTING OF CARBON DIOXIDE AND AT LEAST ONE ELEMENTAL GAS INERT WITH RESPECT TO CARBON DIOXIDE, THE STEPS WHICH COMPRISE BRINGING THE MIXTURE INTO CONTACT WITH ONE SIDE OF A THIN, NON-POROUS MEMBRANE CONSISTING ESSENTIALLY OF A DIORGANO POLYSILOXANE RUBBER, WHEREIN
Claim 2
Dependent Claim
52 words
IN A METHOD OF SEPARATING CARBON DIOXIDE FROM A GAS MIXTURE CONSISTING OF CARBON DIOXIDE AND AT LEAST ONE ELEMENTAL GAS INERT WITH RESPECT TO CARBON DIOXIDE, THE STEPS WHICH COMPRISE BRINGING THE MIXTURE INTO CONTACT WITH ONE SIDE OF A THIN, NON-POROUS MEMBRANE CONSISTING ESSENTIALLY OF A DIORGANO POLYSILOXANE RUBBER, WHEREIN
References Cited (Backward Citations)
US2862575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |