US3282028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic molecular sieves
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1964-01-06
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Granted: 1966-11-01
•
Expires: 1984-01-06
Abstract
No abstract record available.
Inventors
- 👤 Norton H Berlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:38
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A METHOD OF PREPARING ADSORBENTS SUITABLE FOR SEPARATING NITROGEN AND OXYGEN WHICH COMPRISES REACTING A 4A SYNTHETIC MOLECULAR SIEVE WITH AN IONIC SOLUTION CONTAININIG POTASSIUM IONS HAVING THE CAPACITY TO REPLACE SODIUM IONS IN SAID MOLECULAR SIEVE WITH ABOUT 9 TO 11 MOLE PERCENT OF POTASSIUM.
Claim 2
Independent Claim
46 words
A METHOD OF PREPARING ADSORBENTS SUITABLE FOR SEPARATING NITROGEN AND OXYGEN WHICH COMPRISES REACTING A 4A SYNTHETIC MOLECULAR SIEVE WITH AN IONIC SOLUTION CONTAININIG POTASSIUM IONS HAVING THE CAPACITY TO REPLACE SODIUM IONS IN SAID MOLECULAR SIEVE WITH ABOUT 9 TO 11 MOLE PERCENT OF POTASSIUM.
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |