US2963601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ionization vacuum gauge
Assignee: Westinghouse Electric Corp
•
Filing: 1957-08-07
•
Granted: 1960-12-06
•
Expires: 1977-08-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Lawrence J Vanerin
- 👤 George J Schulz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:36
CPC Classifications
H; H01; H01J; H01J41/00; H01J41/02; H01J41/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2043517A
Cited
US2061255A
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US2507696A
Cited
US2573005A
Cited
US2742588A
Cited
US2605431A
Cited
US2793314A
Cited
US2790949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |