US3142547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure equalization depressuring in heatless adsorption
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1961-12-18
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Granted: 1964-07-28
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Expires: 1981-12-18
Abstract
No abstract record available.
Inventors
- 👤 William D Marsh
- 👤 Francis S Pramuk
- 👤 Ronald C Hoke
- 👤 Charles W Skarstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:21
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/50; C01B3/56; B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/047; B01D2253/00; B01D2253/10; B01D2253/102; B01D2253/104; B01D2253/106; B01D2253/108; B01D2253/11; B01D2253/112; B01D2253/1124; B01D2256/00; B01D2256/10; B01D2256/12; B01D2256/16; B01D2257/00; B01D2257/10; B01D2257/102; B01D2257/104; B01D2257/11; B01D2257/70; B01D2257/702; B01D2257/7022; B01D2257/7025; B01D2257/80; B01D2259/00; B01D2259/40; B01D2259/40011; B01D2259/40013; B01D2259/40015; B01D2259/40028; B01D2259/4003; B01D2259/40043; B01D2259/4005; B01D2259/40052; B01D2259/40077; B01D2259/40081; B01D2259/402; B01D53/0476; B01D53/26; B01D53/261; C01B2203/00; C01B2203/04; C01B2203/042; C01B2203/043; C01B2203/0465; C01B2203/048; Y; Y02; Y02C; Y02C20/00; Y02C20/20; Y02P; Y02P20/00; Y02P20/151; Y02P20/156
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
IN A HEATLESS FRACTIONATION PROCESS WHEREIN A MULTICOMPONENT MIXTURE IN THE VAPOR PHASE IS CONTINUOUSLY SEPARATED INTO TWO STREAMS OF DIFFERENT PHYSICAL PROPERTIES BY HIGH PRESSURE ADSORPTION AND LOW PRESSURE DESORPTION, AN IMPROVED METHOD OF DEPRESSURING THE ADSORPTION ZONE TO THE LOW DESORPTION $$$$$ COMPRISING THE STEPS OF EXPANDING THE VAPOR IN THE ADSOPRTION ZONE BY DEPRESSURING THE ZONE AT THE PRIMARY EFFLUENT END TO A
Claim 2
Dependent Claim
66 words
IN A HEATLESS FRACTIONATION PROCESS WHEREIN A MULTICOMPONENT MIXTURE IN THE VAPOR PHASE IS CONTINUOUSLY SEPARATED INTO TWO STREAMS OF DIFFERENT PHYSICAL PROPERTIES BY HIGH PRESSURE ADSORPTION AND LOW PRESSURE DESORPTION, AN IMPROVED METHOD OF DEPRESSURING THE ADSORPTION ZONE TO THE LOW DESORPTION $$$$$ COMPRISING THE STEPS OF EXPANDING THE VAPOR IN THE ADSOPRTION ZONE BY DEPRESSURING THE ZONE AT THE PRIMARY EFFLUENT END TO A
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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |