US3472987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for heating by induction
Assignee: Umicore NV SA
•
Filing: 1966-08-29
•
Granted: 1969-10-14
•
Expires: 1986-08-29
Abstract
No abstract record available.
Inventors
- 👤 Fernand Viart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:43
CPC Classifications
B; B23; B23K; B23K13/00; B23K13/01; B23K13/02; B23K13/025; B23K13/04; H; H05; H05B; H05B6/00; H05B6/02; H05B6/10; H05B6/101; H05B6/103; H05B6/104; H05B6/36; H05B6/362; B23K2101/00; B23K2101/04; B23K2101/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2852649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |