US3454880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural servo measuring device including "zero" and "range" calibration
Assignee: ABB Training Center GmbH and Co KG
•
Filing: 1967-03-16
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Granted: 1969-07-08
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Expires: 1987-03-16
Abstract
No abstract record available.
Inventors
- 👤 Ludwig Ries
- 👤 Fritz Schreiner
- 👤 Werner Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:12
CPC Classifications
G; G01; G01R; G01R15/00; G01R15/08; G01R15/09; G01D; G01D18/00; G01D3/00; G01D3/028; G01D5/00; G01D5/12; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/27; G01N21/274; G01R1/00; G01R1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3348046A
Cited
US3281685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |