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US920604A
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US
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Indicator for testing liquids with respect to viscosity.
Assignee: Firm Of W Graaff & Ges Mit Beschr Haftung Cie
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Filing: 1906-03-16
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Granted: 1909-05-04
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Expires: 1926-03-16
Abstract
No abstract record available.
Inventors
- 👤 Hans Mikorey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:26
CPC Classifications
G; G01; G01N; G01N11/00; G01N11/10; G01N11/14
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) | 1912-05-03 | 1912-11-02 | 1913-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-05-03 | 1916-11-02 | 1917-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-05-03 | 1920-11-02 | 1921-05-04 | $7700.00 | Window Closed / Lapsed |