US3013178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Focussing mask for cathode ray tube
Assignee: Fairchild Semiconductor Corp
•
Filing: 1953-03-23
•
Granted: 1961-12-12
•
Expires: 1973-03-23
Abstract
No abstract record available.
Inventors
- 👤 Roland D Eaton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:21
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/80; H01J29/81
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2659026A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |