US3499508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk parking brake
Assignee: ZF Active Safety US Inc
•
Filing: 1968-02-15
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Granted: 1970-03-10
•
Expires: 1988-02-15
Abstract
No abstract record available.
Inventors
- 👤 Harvey C Swift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:25
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/226; F16D55/2262; F16D65/00; F16D65/14; F16D65/16; F16D65/18; F16D2055/0004; F16D2055/0016; F16D2055/0025; F16D2055/0041; F16D2055/007; F16D2121/00; F16D2121/14; F16D2125/00; F16D2125/18; F16D2125/20; F16D2125/22; F16D2125/28; F16D2125/32; F16D2125/58; F16D2125/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3065829A
Cited
US3077954A
Cited
GB1009843A
Cited
US3310135A
Cited
GB1016565A
Cited
US3365030A
Cited
US3330385A
Cited
US3335819A
Cited
US3335820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |