Patent US3045713A successfully refreshed from Google Patents.
US3045713A
Expired / Lapsed
US
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Method of making grids for electron discharge tubes and a grid made by said method
Assignee: US Philips Corp
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Filing: 1958-04-08
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Granted: 1962-07-24
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Expires: 1978-04-08
Abstract
No abstract record available.
Inventors
- 👤 Cleven Antoon Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:35
CPC Classifications
H; H01; H01J; H01J19/00; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019; H01J2893/0022; H01J2893/0025; Y; Y10; Y10T; Y10T225/00; Y10T225/10; Y10T225/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2759499A
Cited
US2719543A
Cited
US2648797A
Cited
US2853104A
Cited
US2829298A
Cited
US2820487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |