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US2851553A
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US
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Bin level indicator
Assignee: BIN DICATOR CO
•
Filing: 1955-07-29
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Granted: 1958-09-09
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Expires: 1975-07-29
Abstract
No abstract record available.
Inventors
- 👤 Norman L Grostick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:21
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/226
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2116075A
Cited
US2698362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |