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US2954221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weighing device
Assignee: Commonwealth Engineering Company of Ohio
•
Filing: 1957-06-26
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Granted: 1960-09-27
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Expires: 1977-06-26
Abstract
No abstract record available.
Inventors
- 👤 Ernst Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:29
CPC Classifications
G; G01; G01G; G01G5/00; G01G5/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2396916A
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US2487595A
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US2636380A
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US2669864A
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US2592569A
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US2663562A
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US2754107A
Cited
US2755057A
Cited
US2830803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |