Patent US2619531A successfully refreshed from Google Patents.
US2619531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pickup tube for television and the like
Assignee: Pye Electronic Products Ltd
•
Filing: 1949-09-14
•
Granted: 1952-11-25
•
Expires: 1969-09-14
Abstract
No abstract record available.
Inventors
- 👤 Weighton Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:55
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/26; H01J31/28; H01J31/30; H01J31/32; H01J31/265; H04; H04N; H04N3/00; H04N3/36; H04N3/40; H04N3/405
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2172727A
Cited
US2172726A
Cited
US2248985A
Cited
US2234806A
Cited
US2266920A
Cited
US2306272A
Cited
US2213178A
Cited
US2256461A
Cited
US2293899A
Cited
US2543066A
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 |