US2767466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making metal cones for cathode ray tubes
Assignee: RCA Corp
•
Filing: 1953-04-28
•
Granted: 1956-10-23
•
Expires: 1973-04-28
Abstract
No abstract record available.
Inventors
- 👤 Richard D Faulkner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:48
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/24; H01J9/244; Y; Y10; Y10S; Y10S228/00; Y10S228/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1939356A
Cited
US1922087A
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US2092206A
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US2194418A
Cited
US2254090A
Cited
US2603177A
Cited
US8457144B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |