US3465400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making cylindrical mesh electrode for electron tubes
Assignee: Varian Medical Systems Inc
•
Filing: 1967-02-01
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Granted: 1969-09-09
•
Expires: 1987-02-01
Abstract
No abstract record available.
Inventors
- 👤 James P Polese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:26
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/28; H01J19/38; H01J9/00; H01J9/02; H01J9/04; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0015; H01J2893/0017; H01J2893/0019; H01J2893/0022
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |