US3300561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and devices for heating substances by means of radiant energy and plasma heat sources
Assignee: Centre National de la Recherche Scientifique
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Filing: 1963-09-25
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Granted: 1967-01-24
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Expires: 1983-09-25
Abstract
No abstract record available.
Inventors
- 👤 Foex Marc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:58
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/24; H05H1/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
41 words
A HIGH TEMPERATURE FURNACE COMPRISING A CHAMBER TO CONTAIN A NON-GASEOUS SUBSTANCE TO BE HEATED, A PLASMA GENERATOR POSITIONED TO SUBJECT SAID SUBSTANCE IN SAID CHAMBER TO THE ACTION THEREOF, A CALORIFIC RADIATION-EMITTING SOURCE OPERABLE INDEPENDENTLY OF SAID PLASMA, AND MEANS
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |