US3439175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring device for measuring a layer of liquid on a surface
Assignee: Roland Offsetmaschinenfabrik Faber and Schleicher AG
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Filing: 1965-05-26
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Granted: 1969-04-15
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Expires: 1985-05-26
Abstract
No abstract record available.
Inventors
- 👤 Reiner Kammuller
- 👤 Burkhardt Wirz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:07
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/28; G01J3/42; G01B; G01B11/00; G01B11/02; G01B11/06; G01B11/0616; G01B11/0625; G01B11/0633; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/314; G01N21/35; G01N21/3554
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |