Patent US2157706A successfully refreshed from Google Patents.
US2157706A
Expired / Lapsed
US
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Weighing and weight change indicating device
Assignee: Griffith Laboratories Ltd
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Filing: 1938-03-21
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Granted: 1939-05-09
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Expires: 1958-03-21
Abstract
No abstract record available.
Inventors
- 👤 Jones W Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:04
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/22; Y; Y10; Y10S; Y10S116/00; Y10S116/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-05-08 | 1942-11-07 | 1943-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-08 | 1946-11-07 | 1947-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-08 | 1950-11-07 | 1951-05-09 | $7700.00 | Window Closed / Lapsed |