US2948869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactance networks
Assignee: Raytheon Co
•
Filing: 1955-12-27
•
Granted: 1960-08-09
•
Expires: 1975-12-27
Abstract
No abstract record available.
Inventors
- 👤 John F Bigelow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:08
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/02; H03J7/04; H03J7/042; H03G; H03G1/00; H03G1/0005; H03G1/0035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2351934A
Cited
US1783557A
Cited
US2469194A
Cited
FR905881A
Cited
US2457034A
Cited
US2870421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |