US2838176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Check-weighing mechanism
Assignee: International Salt Co Inc
•
Filing: 1951-11-20
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Granted: 1958-06-10
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Expires: 1971-11-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles R Pettis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:10
CPC Classifications
B; B65; B65B; B65B1/00; B65B1/30; B65B1/46; G; G01; G01G; G01G13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1738634A
Cited
US2050496A
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US2304737A
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US2290740A
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US2357783A
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US2488037A
Cited
US2628055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |