US3149934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclic adsorption process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1961-07-13
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Granted: 1964-09-22
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Expires: 1981-07-13
Abstract
No abstract record available.
Inventors
- 👤 Homer Z Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:34
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/047; B01D2253/00; B01D2253/10; B01D2253/102; B01D2253/106; B01D2256/00; B01D2256/16; B01D2257/00; B01D2257/70; B01D2257/702; B01D2257/7022; B01D2257/7025; B01D2257/80; B01D2259/00; B01D2259/40; B01D2259/40011; B01D2259/40043; B01D2259/4005; B01D2259/40052; B01D2259/402; B01D53/0407; B01D53/0446; B01D53/0473; B01D53/0476; B01D53/26; B01D53/261; Y; Y02; Y02C; Y02C20/00; Y02C20/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
IN A CYCLIC ADSORPTION-DESORPTIN PROCESS WHEREIN THE ADSORPTION ZONE IS MAINTAINED AT A PRESSURE GREATER THAN THE DESORPTION ZONE AND WHEREIN AT LEAST PART OF THE PRIMARY EFFLUENT IS REFLUXED TO THE DESORPTION ZONE, THE IMPROVEMENT WHICH COMPRISES: COMPRESSING AT LEAST A PORTION OF THE SECONDARY EFFLUENT FROM SAID DESORPTION ZONE, RECYCLING SAID COMPRESSED SECONDARY EFFLUENT TO THE
Claim 2
Dependent Claim
58 words
IN A CYCLIC ADSORPTION-DESORPTIN PROCESS WHEREIN THE ADSORPTION ZONE IS MAINTAINED AT A PRESSURE GREATER THAN THE DESORPTION ZONE AND WHEREIN AT LEAST PART OF THE PRIMARY EFFLUENT IS REFLUXED TO THE DESORPTION ZONE, THE IMPROVEMENT WHICH COMPRISES: COMPRESSING AT LEAST A PORTION OF THE SECONDARY EFFLUENT FROM SAID DESORPTION ZONE, RECYCLING SAID COMPRESSED SECONDARY EFFLUENT TO THE
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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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |