US3057680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of carrying out heat-consuming reactions
Assignee: GEA Group AG
•
Filing: 1959-03-09
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Granted: 1962-10-09
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Expires: 1979-03-09
Abstract
No abstract record available.
Inventors
- 👤 Schytil Franz
- 👤 Reh Lothar
- 👤 Saccardo Pietro
- 👤 Pozzo Paolo Dal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:31
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1836; C; C01; C01F; C01F7/00; C01F7/48; C01F7/50; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00327; B01J2208/00336; B01J2208/00353; B01J2208/00371
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PROCESS FOR PERFORMING HEAT-CONSUMING REACTIONS BETWEEN SOLIDS AND CHEMICALLY REACTIVE GASES TO CHANGE THE CHEMICAL COMPOSTION OF THE SOLID, COMPRISING FORMING A SLOWLY RISING TURBULENT SUSPENSION OF SOLIDS IN A REACTOR HAVING A BOTTOM GRATE, A LOWER NARROW SHAFT PORTION ABOVE SAID GRATE AND AN UPPER WIDER SHAFT PORTION ABOVE SAID NARROW PORTION, BY PASSING LIFTING GAS UPWARDLY THEOUGH SAID GRATE AT A VELOCITY TO SUSPEND
Claim 2
Dependent Claim
67 words
A PROCESS FOR PERFORMING HEAT-CONSUMING REACTIONS BETWEEN SOLIDS AND CHEMICALLY REACTIVE GASES TO CHANGE THE CHEMICAL COMPOSTION OF THE SOLID, COMPRISING FORMING A SLOWLY RISING TURBULENT SUSPENSION OF SOLIDS IN A REACTOR HAVING A BOTTOM GRATE, A LOWER NARROW SHAFT PORTION ABOVE SAID GRATE AND AN UPPER WIDER SHAFT PORTION ABOVE SAID NARROW PORTION, BY PASSING LIFTING GAS UPWARDLY THEOUGH SAID GRATE AT A VELOCITY TO SUSPEND
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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) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |