US2725071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water level indicator for concrete mixer water tanks
Assignee: Chain Belt Co
•
Filing: 1950-09-09
•
Granted: 1955-11-29
•
Expires: 1970-09-09
Abstract
No abstract record available.
Inventors
- 👤 Robert W Mckillop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:59
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/0007; B; B28; B28C; B28C7/00; B28C7/04; B28C7/12; B28C7/122; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309; Y10T137/3099; Y10T137/8158; Y10T137/8342
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US340226A
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DE326936C
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US687395A
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US1056238A
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US2388432A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |