US2760105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical potential indicator systems
Assignee: Individual
•
Filing: 1950-09-18
•
Granted: 1956-08-21
•
Expires: 1970-09-18
Abstract
No abstract record available.
Inventors
- 👤 Edward L Michaels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:43
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/279; A61B5/28; A61B5/282; A61B5/316; A61B5/369; A61B5/384
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2096012A
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US2327222A
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US2696522A
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US2433941A
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US2528726A
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US2548405A
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US2501637A
Cited
US2541374A
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US2517808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |