US2548808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous-strip anode for magnetrons
Assignee: Individual
•
Filing: 1945-11-06
•
Granted: 1951-04-10
•
Expires: 1965-11-06
Abstract
No abstract record available.
Inventors
- 👤 Nathan P Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:27
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52; H01J25/58; H01J25/587; H01J25/593; H01J19/00; H01J19/28; H01J23/00; H01J23/16; H01J23/165; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1802185A
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US2217745A
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US2128237A
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US2123728A
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US2247077A
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US2348986A
Cited
US2432608A
Cited
US2417789A
Cited
US2406277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |