US2753484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal indicating device
Assignee: TDK Micronas GmbH
•
Filing: 1952-07-29
•
Granted: 1956-07-03
•
Expires: 1972-07-29
Abstract
No abstract record available.
Inventors
- 👤 John H Bryant
- 👤 Albert G Peifer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:50
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/121
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1987136A
Cited
GB380381A
Cited
US2170944A
Cited
US2301490A
Cited
US2464076A
Cited
US2424289A
Cited
US2597360A
Cited
US2514907A
Cited
US2551024A
Cited
US2472779A
Cited
US2592228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-03 | 1960-01-02 | 1960-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-03 | 1964-01-02 | 1964-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-03 | 1968-01-02 | 1968-07-03 | $7700.00 | Window Closed / Lapsed |