US2832047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tunable bridged-t null network
Assignee: Westinghouse Electric Corp
•
Filing: 1954-12-01
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Granted: 1958-04-22
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Expires: 1974-12-01
Abstract
No abstract record available.
Inventors
- 👤 Coleman J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:25
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/01; H03H7/06; H03H7/07; H03H7/17; H03H7/1741; H03H7/1766
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2585842A
Cited
US2762018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |