US2945141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unidirectional high-voltage generator
Assignee: High Voltage Engineering Corp
•
Filing: 1956-12-31
•
Granted: 1960-07-12
•
Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 Graaff Robert J Van De
- 👤 John G Trump
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:48
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/22; H02K19/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US678302A
Cited
US1659729A
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US1898728A
Cited
US1998409A
Cited
US2138160A
Cited
US2330991A
Cited
US2671882A
Cited
US2675427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |