US3059175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase-shift network
Assignee: Westinghouse Electric Corp
•
Filing: 1958-06-05
•
Granted: 1962-10-16
•
Expires: 1978-06-05
Abstract
No abstract record available.
Inventors
- 👤 Alfred W Hodgson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:23
CPC Classifications
H; H03; H03H; H03H11/00; H03H11/02; H03H11/16; H03H11/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1901694A
Cited
US2005892A
Cited
US2020961A
Cited
US2189569A
Cited
US2264695A
Cited
US2370287A
Cited
US2387943A
Cited
US2458644A
Cited
US2474886A
Cited
US2627598A
Cited
US2564559A
Cited
US2632798A
Cited
US2665407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |