Patent US3456175A successfully refreshed from Google Patents.
US3456175A
Expired / Lapsed
US
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Dynamic braking apparatus
Assignee: Machlett Laboratories Inc
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Filing: 1966-08-31
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Granted: 1969-07-15
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Expires: 1986-08-31
Abstract
No abstract record available.
Inventors
- 👤 Gordon F Bavor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:02
CPC Classifications
H; H05; H05G; H05G1/00; H05G1/08; H05G1/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2637007A
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US1911356A
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US2445806A
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US2445430A
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US2512354A
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US2818539A
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US2929977A
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US3233158A
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US3281632A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |