US3522015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct conversion chemical processing arc heater
Assignee: Westinghouse Electric Corp
•
Filing: 1966-02-16
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Granted: 1970-07-28
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Expires: 1986-02-16
Abstract
No abstract record available.
Inventors
- 👤 Daniel A Maniero
- 👤 Charles B Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:17
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/18; H05B7/185; B; B01; B01J; B01J19/00; B01J19/08; B01J19/087; B01J19/088; C; C07; C07C; C07C2/00; C07C2/76; C07C2/80; C07F; C07F9/00; C07F9/90; C07F9/902; C08; C08K; C08K5/00; C08K5/59; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921
Claims Analysis
Total Claims: 0
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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) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |