US3009099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Testing instrument for electric alternating voltages
Assignee: Schiffmann Alois GmbH
•
Filing: 1958-04-29
•
Granted: 1961-11-14
•
Expires: 1978-04-29
Abstract
No abstract record available.
Inventors
- 👤 Muller Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:39
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/145; G01R19/155
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1679397A
Cited
US1684798A
Cited
US1723861A
Cited
US2488328A
Cited
GB648448A
Cited
US2651021A
Cited
US2810068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-13 | 1965-05-15 | 1965-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-13 | 1969-05-15 | 1969-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-13 | 1973-05-15 | 1973-11-14 | $7700.00 | Window Closed / Lapsed |