US3415991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display device utilizing magnetic memory elements for distributing a thermal patternon a heat sensitive screen
Assignee: Westinghouse Electric Corp
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Filing: 1965-06-29
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Granted: 1968-12-10
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Expires: 1985-06-29
Abstract
No abstract record available.
Inventors
- 👤 Juris A Asars
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:02
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/132; G02B; G02B23/00; G02B23/12; G09; G09F; G09F9/00; G09F9/30; G09F9/35; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/36; G09G3/3603
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |