US2486787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston sleeve protection for brake cylinders
Assignee: Individual
•
Filing: 1946-04-08
•
Granted: 1949-11-01
•
Expires: 1966-04-08
Abstract
No abstract record available.
Inventors
- 👤 Herbert H Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:09
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/08; B60T17/081; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US719559A
Cited
US980823A
Cited
GB206275A
Cited
US1626596A
Cited
US1745346A
Cited
US2204795A
Cited
US2337766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |