US3392508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pretreatment of molecular sieves
Assignee: Stamicarbon BV
•
Filing: 1966-12-13
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Granted: 1968-07-16
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Expires: 1986-12-13
Abstract
No abstract record available.
Inventors
- 👤 Joseph J F Scholten
- 👤 Josef A Konvalinka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:48
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12; C07C7/13; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; B01J23/00; B01J23/16; B01J29/00; B01J29/04; B01J29/06; F; F26; F26B; F26B21/00; F26B21/30; F26B21/33; F26B21/331; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906; Y10S95/00; Y10S95/90; Y10S95/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3106593A
Cited
US3061654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |