US3100347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for indicating or recording the liquid level in narrow, long measuring vessels
Assignee: Bayer AG
•
Filing: 1959-12-23
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Granted: 1963-08-13
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Expires: 1979-12-23
Abstract
No abstract record available.
Inventors
- 👤 Fritze Ulrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:45
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/24; G01F23/245; B; B01; B01L; B01L3/00; B01L3/02; B01L3/0203; G01F23/241
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |