US3412398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display device with electronically controlled persistence
Assignee: Raytheon Co
•
Filing: 1967-08-14
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Granted: 1968-11-19
•
Expires: 1987-08-14
Abstract
No abstract record available.
Inventors
- 👤 Donald E Schrader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:57
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/2806; G01S7/04; G01S7/06; G01S7/10; Y; Y10; Y10S; Y10S348/00; Y10S348/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3230530A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |