Patent US2645121A successfully refreshed from Google Patents.
US2645121A
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US
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Weight sensing device
Assignee: Byron Jackson Co
•
Filing: 1949-04-29
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Granted: 1953-07-14
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Expires: 1969-04-29
Abstract
No abstract record available.
Inventors
- 👤 Lyle B Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:55
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1659919A
Cited
US1771340A
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US2029111A
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US2118727A
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US2183078A
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US2420148A
Cited
US2414161A
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US2423842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |