US3581489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for inductive heating nonconductive exhaust treatment catalyst
Assignee: Sunoco Inc
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Filing: 1968-12-17
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Granted: 1971-06-01
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Expires: 1988-12-17
Abstract
Abstract Apparatus for rapidly and uniformly heating nonconductive particulate material, especially exhaust treatment catalyst particles, which comprises dispersing conductive metal particles within the nonconductive material and subsequently inducing radio frequency current into the metal particles.
Inventors
- 👤 David L Camin
- 👤 Robert E Burtner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:15
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/18; F01N3/20; F01N3/2006; F01N3/2013; B; B01; B01J; B01J8/00; B01J8/02; B01J8/06; B01J8/067; F01N9/00; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00044; B01J2208/00061; B01J2208/00433; B01J2208/00469; B01J2208/00716; F01N2330/00; F01N2330/08; F01N3/24; F01N3/30; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y02T10/40
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
13 words
Apparatus as described in claim 1 wherein said inducing means is a coil.
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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |