Patent US3461986A successfully refreshed from Google Patents.
US3461986A
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Optical weighing apparatus
Assignee: Maatschappij Van Berkels Patent BV
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Filing: 1967-08-15
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Granted: 1969-08-19
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Expires: 1987-08-15
Abstract
No abstract record available.
Inventors
- 👤 Berend B Schierbeek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:17
CPC Classifications
G; G01; G01G; G01G23/00; G01G23/18; G01G23/32; G01G23/34; G01G19/00; G01G19/002; G01G19/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |