US2471244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Braking system for motorcars
Assignee: Individual
•
Filing: 1946-11-21
•
Granted: 1949-05-24
•
Expires: 1966-11-21
Abstract
No abstract record available.
Inventors
- 👤 Self John Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:34
CPC Classifications
B; B60; B60T; B60T7/00; B60T7/02; B60T7/08; B60T7/10; B60W; B60W30/00; B60W30/18; B60W2710/00; B60W2710/18; B60W2710/20; B60W30/1819; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20256; Y10T74/20268
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) | 1952-05-23 | 1952-11-22 | 1953-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-23 | 1956-11-22 | 1957-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-23 | 1960-11-22 | 1961-05-24 | $7700.00 | Window Closed / Lapsed |