US2866301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warning device comprising a microphone preferably for a grinding machine
Assignee: Societe Genevoise dInstruments de Physique
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Filing: 1953-03-31
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Granted: 1958-12-30
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Expires: 1973-03-31
Abstract
No abstract record available.
Inventors
- 👤 Koulicovitch Maurice
- 👤 Juvet Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:36
CPC Classifications
B; B24; B24B; B24B47/00; B24B47/20; B23; B23Q; B23Q15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1893205A
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US1891777A
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US2023662A
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US2348581A
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US2620386A
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US2633678A
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US2698929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |