Patent US3121159A successfully refreshed from Google Patents.
US2482759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic switch with common cathode output
Assignee: Individual
•
Filing: 1945-04-16
•
Granted: 1949-09-27
•
Expires: 1965-04-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph D Goodrich
- 👤 Thomas F C Muchmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:57
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/54
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) | 1952-09-26 | 1953-03-28 | 1953-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-26 | 1957-03-28 | 1957-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-26 | 1961-03-28 | 1961-09-27 | $7700.00 | Window Closed / Lapsed |