US996713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency-measuring instrument.
Assignee: ABB Training Center GmbH and Co KG
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Filing: 1907-05-31
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Granted: 1911-07-04
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Expires: 1927-05-31
Abstract
No abstract record available.
Inventors
- 👤 Robert Hartmann-Kempf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:49
CPC Classifications
G; G01; G01R; G01R23/00; G01R23/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1914-07-03 | 1915-01-02 | 1915-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-07-03 | 1919-01-02 | 1919-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-07-03 | 1923-01-02 | 1923-07-04 | $7700.00 | Window Closed / Lapsed |