US2956226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mine test set
Assignee: Individual
•
Filing: 1952-12-23
•
Granted: 1960-10-11
•
Expires: 1972-12-23
Abstract
No abstract record available.
Inventors
- 👤 Charles C Vogt
- 👤 James W Martin
- 👤 Harold A Barber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:17
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/28; G01R31/2832; G01R31/2836
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1901185A
Cited
US2396914A
Cited
US2400256A
Cited
US2400257A
Cited
US2400258A
Cited
US2696605A
Cited
US2756409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |