US3306922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molecular sieve adsorbents
Assignee: Union Carbide Corp
•
Filing: 1961-03-22
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Granted: 1967-02-28
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Expires: 1981-03-22
Abstract
No abstract record available.
Inventors
- 👤 Richard M Barrer
- 👤 Patrick J Denny
- 👤 Edith M Flanigen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:55
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2876; Y; Y10; Y10S; Y10S423/00; Y10S423/21; Y10S423/24
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
2 words
0$0.1((1-X)((CH3)4N)2O+XM2O3:4.25$ 1.75SIO2:YH2O
Claim 2
Dependent Claim
2 words
0$0.1((1-X)((CH3)4N)2O+XM2O3:4.25$ 1.75SIO2:YH2O
Claim 3
Dependent Claim
16 words
A SYNTHETIC, CRYSTALLINE ZEOLITE HAVING A COMPOSITION EXPRESSED IN TERMS OF MOLES OF OXIDES AS FOLLOWS:
Claim 4
Dependent Claim
16 words
A SYNTHETIC, CRYSTALLINE ZEOLITE HAVING A COMPOSITION EXPRESSED IN TERMS OF MOLES OF OXIDES AS FOLLOWS:
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |