Patent US2960836A successfully refreshed from Google Patents.
US2960836A
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Process and apparatus for purifying gases
Assignee: Stamicarbon BV
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Filing: 1955-09-27
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Granted: 1960-11-22
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Expires: 1975-09-27
Abstract
No abstract record available.
Inventors
- 👤 Pieter J Haringhuizen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:22
CPC Classifications
C; C01; C01B; C01B4/00; B; B01; B01D; B01D5/00; B01D5/0033; B01D5/0078; B01D5/0081; B01D5/0084; B01D5/0093; B01D51/00; B01D51/10; C01B3/00; C01B3/50; C01B3/506; F; F25; F25J; F25J5/00; C01B2203/00; C01B2203/04; C01B2203/0465; C01B2203/047; Y; Y10; Y10S; Y10S62/00; Y10S62/931; Y10S62/934
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) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |