US2879423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counter
Assignee: Westinghouse Electric Corp
•
Filing: 1954-06-02
•
Granted: 1959-03-24
•
Expires: 1974-06-02
Abstract
No abstract record available.
Inventors
- 👤 Robert T Bayard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:27
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1508076A
Cited
US2479032A
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US2605435A
Cited
US2426650A
Cited
US2476387A
Cited
US2494641A
Cited
US2522902A
Cited
US2654041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |