US2973231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston assembly for hydraulic brake master cylinder
Assignee: Individual
•
Filing: 1958-05-26
•
Granted: 1961-02-28
•
Expires: 1978-05-26
Abstract
No abstract record available.
Inventors
- 👤 Noel S Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:09
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/16; B60T11/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2060847A
Cited
US2059729A
Cited
US2161277A
Cited
US2232350A
Cited
US2577153A
Cited
US2349345A
Cited
US2454036A
Cited
US2701155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-28 | 1964-08-29 | 1965-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-28 | 1968-08-29 | 1969-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-28 | 1972-08-29 | 1973-02-28 | $7700.00 | Window Closed / Lapsed |