Patent US2785263A successfully refreshed from Google Patents.
US2785263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the local heating of metallic work-pieces by inductive hf-heating and hf-inductor
Assignee: US Philips Corp
•
Filing: 1953-01-29
•
Granted: 1957-03-12
•
Expires: 1973-01-29
Abstract
No abstract record available.
Inventors
- 👤 Dirk Christiaan Van Iperen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:34
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/36; H05B6/365
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US458163A
Cited
DE857835C
Cited
US2493950A
Cited
US2484650A
Cited
US2541416A
Cited
GB642292A
Cited
US2599086A
Cited
US2528758A
Cited
GB666381A
Cited
US2606997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |