Patent US5114408A successfully refreshed from Google Patents.
Patent US2473188A successfully refreshed from Google Patents.
US2473188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio-frequency dielectric heater with constant heating rate control
Assignee: RCA Corp
•
Filing: 1944-06-17
•
Granted: 1949-06-14
•
Expires: 1964-06-17
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Albin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:58
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/48; H05B6/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2324525A
Cited
US1658953A
Cited
US1919976A
Cited
US2051773A
Cited
GB439166A
Cited
US2112418A
Cited
US2179261A
Cited
US2306763A
Cited
US2280725A
Cited
US2251277A
Cited
US2304958A
Cited
US2293851A
Cited
US2396004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |