US2465093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency corona arc heating apparatus
Assignee: General Electric Co
•
Filing: 1946-07-03
•
Granted: 1949-03-22
•
Expires: 1966-07-03
Abstract
No abstract record available.
Inventors
- 👤 Earl C Hanson
- 👤 Donald E Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:01
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/16; C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/56
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1503224A
Cited
US1607675A
Cited
US1959390A
Cited
US2040343A
Cited
US2349569A
Cited
US2407120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-21 | 1952-09-20 | 1953-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-21 | 1956-09-20 | 1957-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-21 | 1960-09-20 | 1961-03-22 | $7700.00 | Window Closed / Lapsed |