Patent US2589833A successfully refreshed from Google Patents.
US2589833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse discriminator circuit
Assignee: United States, WAR, Secretary of
•
Filing: 1945-05-03
•
Granted: 1952-03-18
•
Expires: 1965-05-03
Abstract
No abstract record available.
Inventors
- 👤 Conrad L Longmire
- 👤 Israel H Sudman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:13
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/04; H04N5/08; H04N5/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2113011A
Cited
US2281934A
Cited
US2248975A
Cited
US2241619A
Cited
US2363659A
Cited
US2363810A
Cited
US2359447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |