US3040191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching systems
Assignee: Westinghouse Electric Corp
•
Filing: 1958-06-10
•
Granted: 1962-06-19
•
Expires: 1978-06-10
Abstract
No abstract record available.
Inventors
- 👤 Richard L Bright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:25
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/70
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CA494864A
Cited
US1930758A
Cited
US2000685A
Cited
FR66575E
Cited
US2663767A
Cited
US2843765A
Cited
US2953693A
Cited
US2917698A
Cited
US2905885A
Cited
US2910641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |