US2842702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode grid assembly
Assignee: RCA Corp
•
Filing: 1954-09-02
•
Granted: 1958-07-08
•
Expires: 1974-09-02
Abstract
No abstract record available.
Inventors
- 👤 Francis R Titcomb
- 👤 Bernard M Brinton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:44
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/48; H01J29/485; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49893; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49922; Y10T29/49925; Y10T29/49927; Y10T29/49929
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2064485A
Cited
US2456474A
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US2507979A
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US2604258A
Cited
US2611676A
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US2641727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |