US3482946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactor for contacting vaporous reactants with fluidized solids
Assignee: Air Products and Chemicals Inc
•
Filing: 1966-06-27
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Granted: 1969-12-09
•
Expires: 1986-06-27
Abstract
No abstract record available.
Inventors
- 👤 Robert M Shirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:04
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1836; B01J8/24; B01J8/26; B01J8/28; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00115; B01J2208/00141; B01J2208/0053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2438467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |