US3430418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective adsorption process
Assignee: Union Carbide Corp
•
Filing: 1967-08-09
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Granted: 1969-03-04
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Expires: 1987-08-09
Abstract
No abstract record available.
Inventors
- 👤 John L Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:45
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/047; C; C01; C01B; C01B3/00; C01B3/50; C01B3/56; B01D2253/00; B01D2253/10; B01D2253/102; B01D2253/106; B01D2253/108; B01D2256/00; B01D2256/10; B01D2256/16; B01D2256/18; B01D2257/00; B01D2257/10; B01D2257/102; B01D2257/11; B01D2257/30; B01D2257/304; B01D2257/40; B01D2257/406; B01D2257/50; B01D2257/502; B01D2257/504; B01D2257/70; B01D2257/702; B01D2257/80; B01D2259/00; B01D2259/40; B01D2259/40007; B01D2259/40011; B01D2259/40028; B01D2259/4003; B01D2259/40035; B01D2259/40037; B01D2259/40041; B01D2259/40043; B01D2259/4005; B01D2259/40052; B01D2259/40058; B01D2259/40067; B01D2259/40073; B01D2259/40077; B01D2259/40081; B01D2259/404; B01D2259/406; B01D2259/4061; B01D2259/414; B01D2259/4141; B01D2259/4145; B01D53/26; B01D53/261; C01B2203/00; C01B2203/04; C01B2203/042; C01B2203/043; C01B2203/0465; C01B2203/047; C01B2203/0475; C01B2203/048; C01B2203/0495; Y; Y02; Y02C; Y02C20/00; Y02C20/40; Y02P; Y02P20/00; Y02P20/151
Claims Analysis
Total Claims: 0
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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) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |