US2586854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed circuit construction
Assignee: Farnsworth Research Corp
•
Filing: 1947-04-19
•
Granted: 1952-02-26
•
Expires: 1967-04-19
Abstract
No abstract record available.
Inventors
- 👤 William H Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:47
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/002; H05K9/0039; Y; Y10; Y10S; Y10S174/00; Y10S174/35
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1563731A
Cited
US1939130A
Cited
US1960058A
Cited
GB452573A
Cited
US2066876A
Cited
US2066511A
Cited
US2427144A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |