US3406306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Center discharge arc heater apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1966-01-26
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Granted: 1968-10-15
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Expires: 1986-01-26
Abstract
No abstract record available.
Inventors
- 👤 Daniel A Maniero
- 👤 George A Kemeny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:35
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/18; H05B7/185
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) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |