Patent US1845846A successfully refreshed from Google Patents.
Patent US2820928A successfully refreshed from Google Patents.
US2820928A
Expired / Lapsed
US
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Electrically controlled brake unit
Assignee: Individual
•
Filing: 1952-01-05
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Granted: 1958-01-21
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Expires: 1972-01-05
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Robert G Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:56
CPC Classifications
F; F16; F16D; F16D55/00; F16D2121/00; F16D2121/18; F16D2121/20; F16D2121/22
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |