US3378722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Series spark gaps arranged to produce a magnetic field
Assignee: Westinghouse Electric Corp
•
Filing: 1965-10-13
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Granted: 1968-04-16
•
Expires: 1985-10-13
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Osterhout
- 👤 Charles H Carothers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:20
CPC Classifications
H; H01; H01T; H01T4/00; H01T4/16; H01J; H01J17/00; H01T1/00; H01T1/02; H01T1/04; H01J2893/00; H01J2893/0059
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |