US2844230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permeable brake
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1954-08-04
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Granted: 1958-07-22
•
Expires: 1974-08-04
Abstract
No abstract record available.
Inventors
- 👤 Edward T Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:55
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/78; F16D65/84; F16D65/847; F16D2065/781
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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |