US2887622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical circuit pattern tester
Assignee: Individual
•
Filing: 1953-08-07
•
Granted: 1959-05-19
•
Expires: 1973-08-07
Abstract
No abstract record available.
Inventors
- 👤 Charles C Rayburn
- 👤 Robert L Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:15
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/28; G01R31/2801; G01R31/2805
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1449078A
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US1851514A
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US1667420A
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US2101381A
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US2158630A
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US2198503A
Cited
US2329491A
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US2609927A
Cited
US2663844A
Cited
US2844250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |