Patent US2426053A successfully refreshed from Google Patents.
US2426053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of heating gear with highfrequency current
Assignee: RCA Corp
•
Filing: 1943-02-27
•
Granted: 1947-08-19
•
Expires: 1963-02-27
Abstract
No abstract record available.
Inventors
- 👤 Wesley M Roberds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:18
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/10; H05B6/101; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49462; Y10T29/49467; Y10T29/49471
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1378187A
Cited
US2020276A
Cited
US2066668A
Cited
US2024906A
Cited
US2125316A
Cited
US2167789A
Cited
US2223970A
Cited
US2299934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-18 | 1951-02-17 | 1951-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-18 | 1955-02-17 | 1955-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-18 | 1959-02-17 | 1959-08-19 | $7700.00 | Window Closed / Lapsed |