US3046509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Induction coil with split flexible insulating flange
Assignee: Lindberg Engineering Co
•
Filing: 1959-11-09
•
Granted: 1962-07-24
•
Expires: 1979-11-09
Abstract
No abstract record available.
Inventors
- 👤 Othmar R Wuczkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:27
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2735075A
Cited
US1381567A
Cited
US2455355A
Cited
US2471777A
Cited
US2435093A
Cited
US2829354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |