Patent US2619590A successfully refreshed from Google Patents.
US2619590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discriminating panoramic receiver
Assignee: Individual
•
Filing: 1946-04-26
•
Granted: 1952-11-25
•
Expires: 1966-04-26
Abstract
No abstract record available.
Inventors
- 👤 Everard M Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:26
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/18; H03J7/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2273134A
Cited
US2520141A
Cited
US2381940A
Cited
US2405843A
Cited
US2465355A
Cited
US2457676A
Cited
US2450018A
Cited
US2440278A
Cited
US2502294A
Cited
US2414096A
Cited
US2451632A
Cited
US2455052A
Cited
US2419772A
Cited
US2484618A
Cited
US2538068A
Cited
US2443619A
Cited
US2512699A
Cited
USRE21473E
Cited
US2224134A
Cited
US2174566A
Cited
US2250819A
Cited
US2275460A
Cited
US2273097A
Cited
US2312203A
Cited
US2258599A
Cited
US2250862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |