US2637625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gaseous diffusion process
Assignee: Individual
•
Filing: 1946-05-21
•
Granted: 1953-05-05
•
Expires: 1966-05-21
Abstract
No abstract record available.
Inventors
- 👤 Paul W Garbo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:15
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/22; Y; Y10; Y10S; Y10S48/00; Y10S48/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
THE IMPROVED GASEOUS DIFFUSION PROCESS FOR THE SEPARATION OF MIXED GASES, WHICH COMPRISES PASSING A GASEOUS MIXTURE ALONG ONE SURFACE OF A DIFFUSION BARRIER ADAPTED TO PERMIT THE PREFERENTIAL DIFFUSION THERETHROUGH OF ONE COMPONENT OF SAID GASEOUS MIXTURE, WHILE MAINTAINING MOVING SOLID PARTICLES IN CONTACT WITH SAID SURFACE OF SAID BARRIER, AND RECOVERING THE GASEOUS DIFFUSATE.
Claim 2
Dependent Claim
56 words
THE IMPROVED GASEOUS DIFFUSION PROCESS FOR THE SEPARATION OF MIXED GASES, WHICH COMPRISES PASSING A GASEOUS MIXTURE ALONG ONE SURFACE OF A DIFFUSION BARRIER ADAPTED TO PERMIT THE PREFERENTIAL DIFFUSION THERETHROUGH OF ONE COMPONENT OF SAID GASEOUS MIXTURE, WHILE MAINTAINING MOVING SOLID PARTICLES IN CONTACT WITH SAID SURFACE OF SAID BARRIER, AND RECOVERING THE GASEOUS DIFFUSATE.
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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) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |