Patent US2863002A successfully refreshed from Google Patents.
US2863002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic transducer
Assignee: Raytheon Co
•
Filing: 1954-09-07
•
Granted: 1958-12-02
•
Expires: 1974-09-07
Abstract
No abstract record available.
Inventors
- 👤 David F Brower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:06
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/187; G11B5/17; G11B5/29; G11B5/48
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |