US3200284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Platinum coated molybdenum grid having an intermediate layer of nickel
Assignee: US Philips Corp
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Filing: 1961-05-26
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Granted: 1965-08-10
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Expires: 1981-05-26
Abstract
No abstract record available.
Inventors
- 👤 Bakker Martinus Antonius Maria
- 👤 Duran Johannes Christiaan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:52
CPC Classifications
H; H01; H01J; H01J19/00; C; C25; C25D; C25D5/00; C25D5/34; C25D5/38; H01J19/28; H01J19/30; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019; H01J2893/002; H01J2893/0022; H01J2893/0023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A GRID FOR AN ELECTRIC DISCHARGE TUBE COMPRISING A BASE OF MOLYBDENUM, AN OUTER LAYER OF PLATINUM, AND AN INTERMEDIATE LAYER OF A METAL SELECTED FROM THE GROUP CONSISTING OF IRON, COBALT, AND NICKEL FIRMLY BONDING SAID PLATINUM LAYER TO SAID BASE, SAID INTERMEDIATE LAYER HAVING A THICKNESS LESS THAN HALF THAT OF THE PLATINUM LAYER.
Claim 2
Dependent Claim
56 words
A GRID FOR AN ELECTRIC DISCHARGE TUBE COMPRISING A BASE OF MOLYBDENUM, AN OUTER LAYER OF PLATINUM, AND AN INTERMEDIATE LAYER OF A METAL SELECTED FROM THE GROUP CONSISTING OF IRON, COBALT, AND NICKEL FIRMLY BONDING SAID PLATINUM LAYER TO SAID BASE, SAID INTERMEDIATE LAYER HAVING A THICKNESS LESS THAN HALF THAT OF THE PLATINUM LAYER.
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |