US3449148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formation of electron barriers on phosphor particles
Assignee: Texas Instruments Inc
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Filing: 1966-06-30
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Granted: 1969-06-10
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Expires: 1986-06-30
Abstract
No abstract record available.
Inventors
- 👤 Samuel Ray Shortes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:43
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/20; C; C09; C09K; C09K11/00; C09K11/02; C09K11/025; C09K11/08; C09K11/56; C09K11/562
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) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |