US3309844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for adsorbing gases
Assignee: Union Carbide Corp
•
Filing: 1963-11-29
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Granted: 1967-03-21
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Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 Russell A Hemstreet
- 👤 Donald M Ruttenbur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:23
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D53/0438; B01D8/00; B01D2253/00; B01D2253/10; B01D2253/106; B01D2253/108; B01D2259/00; B01D2259/40; B01D2259/40083; B01D2259/40088; B01D2259/4009; Y; Y10; Y10S; Y10S95/00; Y10S95/90; Y10S95/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PROCESS FOR ADSORBING A GAS, WHICH PROCESS COMPRISES PROVIDING SAID GAS AT A FIRST TEMPERATURE AND CONTACTING SAID GAS WITH A SOLID AGGLOMERATE AND SIMULTANEOUSLY COOLING SUCH AGGLOMERATE TO A SECOND LOWER TEMPERATUR BY HEAT EXCHANGE WITH A COLDER SOLID SURFACE IN CONTIGUOUS ASSOCIATION THEREWITH, SAID AGGLOMERATE COMPRISING A MAJOR AMOUNT OF A FINELY DIVIDED CRYSTALLINE ZEOLITIC MOLECULAR SIEVE ADSORBENT AND A MINOR AMOUNT OF A FINELY DIVIDED ELEMENTAL METAL HAVING A MELTING POINT OVER 300*C. UNIFORMLY DISPERSED THROUGHOUT THE AGGLOMERATE.
Claim 2
Dependent Claim
82 words
A PROCESS FOR ADSORBING A GAS, WHICH PROCESS COMPRISES PROVIDING SAID GAS AT A FIRST TEMPERATURE AND CONTACTING SAID GAS WITH A SOLID AGGLOMERATE AND SIMULTANEOUSLY COOLING SUCH AGGLOMERATE TO A SECOND LOWER TEMPERATUR BY HEAT EXCHANGE WITH A COLDER SOLID SURFACE IN CONTIGUOUS ASSOCIATION THEREWITH, SAID AGGLOMERATE COMPRISING A MAJOR AMOUNT OF A FINELY DIVIDED CRYSTALLINE ZEOLITIC MOLECULAR SIEVE ADSORBENT AND A MINOR AMOUNT OF A FINELY DIVIDED ELEMENTAL METAL HAVING A MELTING POINT OVER 300*C. UNIFORMLY DISPERSED THROUGHOUT THE AGGLOMERATE.
References Cited (Backward Citations)
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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) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |