US2814532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake systems
Assignee: Individual
•
Filing: 1952-04-02
•
Granted: 1957-11-26
•
Expires: 1972-04-02
Abstract
No abstract record available.
Inventors
- 👤 Robert G Stephanski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:04
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/28; B60T11/32; B60T11/323; B60T17/00; B60T17/18; B60T17/22; B60T17/225
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2018912A
Cited
US2085173A
Cited
CH173239A
Cited
GB486512A
Cited
US2024042A
Cited
US2093015A
Cited
US2195558A
Cited
US2121653A
Cited
US2501800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |