US2647044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solids baffle for catalyst apparatus
Assignee: Houdry Process Corp
•
Filing: 1949-03-26
•
Granted: 1953-07-28
•
Expires: 1969-03-26
Abstract
No abstract record available.
Inventors
- 👤 Reuben T Savage
- 👤 Jack C Dart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:14
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; Y; Y10; Y10S; Y10S128/00; Y10S128/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2393893A
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US2400194A
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US2487961A
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US2416230A
Cited
US2493672A
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US2429545A
Cited
US2486200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |