Patent US3540219A successfully refreshed from Google Patents.
US3540219A
Expired / Lapsed
US
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Pneumatic booster assembly for brake system,especially adapted for automotive use
Assignee: Aisin Corp
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Filing: 1968-05-28
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Granted: 1970-11-17
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Expires: 1988-05-28
Abstract
No abstract record available.
Inventors
- 👤 Yooichi Huruta
- 👤 Yoshiharu Adachi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:42
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/46; B60T13/52; B60T13/565; F; F15; F15B; F15B17/00
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) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |