Patent US2848212A successfully refreshed from Google Patents.
US2848212A
Expired / Lapsed
US
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Pressure relief device for hydraulic weighing
Assignee: Stothert and Pitt Ltd
•
Filing: 1954-05-17
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Granted: 1958-08-19
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Expires: 1974-05-17
Abstract
No abstract record available.
Inventors
- 👤 Kerridge Norman Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:31
CPC Classifications
B; B28; B28C; B28C7/00; B28C7/04; B28C7/06; B28C7/08; B28C7/0835
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1156245A
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GB191313238A
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US1855420A
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US1877980A
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US2380362A
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US2758726A
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US2565792A
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US2635868A
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US2659592A
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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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |