US3011374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wafer coil manufacture
Assignee: GTE Sylvania Inc
•
Filing: 1955-11-08
•
Granted: 1961-12-05
•
Expires: 1975-11-08
Abstract
No abstract record available.
Inventors
- 👤 Frank H Walker
- 👤 Zack Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:02
CPC Classifications
B; B23; B23D; B23D27/00; Y; Y10; Y10T; Y10T82/00; Y10T82/16; Y10T82/16032
Claims Analysis
Total Claims: 0
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US2674310A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |