US2817689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flood type gas scrubber
Assignee: Phillips Petroleum Co
•
Filing: 1953-09-30
•
Granted: 1957-12-24
•
Expires: 1973-09-30
Abstract
No abstract record available.
Inventors
- 👤 White Roy Lucien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:38
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/02; B01D47/021; Y; Y10; Y10S; Y10S585/00; Y10S585/949; Y10S585/956; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/3052; Y10T137/3068; Y10T137/7287; Y10T137/7313; Y10T137/7323; Y10T137/7326
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A MEHTOD FOR CONTROLLING THE OPERATION OF A HEATOPENING COMMUNICATING WITH THE INTERIOR OF SAID SUPA GASEOUS EFFLUENT WHICH COMPRISES: SCRUBBING SUCCESSIVE PORTIONS OF SAID GASOUS EFFLUENT FROM SAID HEATING ZONE WITH SUCCESSIVE PORTIONS OF A SCRUBBING MEDIUM, DETER-
Claim 2
Dependent Claim
39 words
A MEHTOD FOR CONTROLLING THE OPERATION OF A HEATOPENING COMMUNICATING WITH THE INTERIOR OF SAID SUPA GASEOUS EFFLUENT WHICH COMPRISES: SCRUBBING SUCCESSIVE PORTIONS OF SAID GASOUS EFFLUENT FROM SAID HEATING ZONE WITH SUCCESSIVE PORTIONS OF A SCRUBBING MEDIUM, DETER-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |