US2913666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage responsive instrument for test equipment
Assignee: Individual
•
Filing: 1955-09-27
•
Granted: 1959-11-17
•
Expires: 1975-09-27
Abstract
No abstract record available.
Inventors
- 👤 Hand Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:35
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/12; G01R31/14; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/20; G01R31/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2233415A
Cited
US2351079A
Cited
US2367116A
Cited
US2356617A
Cited
US2680221A
Cited
US2821668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |