Patent US3530493A successfully refreshed from Google Patents.
US3530493A
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Floating friction brake for rotary disk
Assignee: ZF Active Safety US Inc
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Filing: 1968-10-02
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Granted: 1970-09-22
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Expires: 1988-10-02
Abstract
No abstract record available.
Inventors
- 👤 Harold S Hollnagel
- 👤 Harold E Hollnagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:28
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/14; F16D65/16; F16D65/18; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/226; F16D55/2265; F16D55/227; F16D65/02; F16D65/04; F16D65/092; F16D65/095; F16D65/097; F16D65/0973; F16D2055/0004; F16D2055/0016; F16D2055/002; F16D2055/007; F16D2121/00; F16D2121/02; F16D2121/14; F16D2123/00; F16D2125/00; F16D2125/18; F16D2125/20; F16D2125/34; F16D2125/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2784811A
Cited
US3035664A
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US3114436A
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GB968897A
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GB1072435A
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US3199635A
Cited
US3243017A
Cited
US3298468A
Cited
US3357528A
Cited
US3410371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |