Patent US2688458A successfully refreshed from Google Patents.
US2688458A
Expired / Lapsed
US
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Classifier and controller for weight-checking devices
Assignee: Exact Weight Scale Co
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Filing: 1951-03-27
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Granted: 1954-09-07
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Expires: 1971-03-27
Abstract
No abstract record available.
Inventors
- 👤 Warren J Schieser
- 👤 Richard M White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:25
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/16; B07C5/32
Claims Analysis
Total Claims: 0
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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 |