US2688459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Averaging system
Assignee: Exact Weight Scale Co
•
Filing: 1951-03-29
•
Granted: 1954-09-07
•
Expires: 1971-03-29
Abstract
No abstract record available.
Inventors
- 👤 Roger L Merrill
- 👤 Hecox William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:42
CPC Classifications
G; G01; G01G; G01G15/00; G07; G07C; G07C3/00; G07C3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1089680A
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US1921317A
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US2258859A
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US2349437A
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US2532010A
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GB587210A
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US2477395A
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GB601393A
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US2537498A
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US2503295A
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US2514054A
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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) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |