Patent US1472626A successfully refreshed from Google Patents.
US2744510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compression braking system for internal combustion engines
Assignee: Individual
•
Filing: 1952-04-26
•
Granted: 1956-05-08
•
Expires: 1972-04-26
Abstract
No abstract record available.
Inventors
- 👤 Edward P Tyler
- 👤 Abe E Goodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:45
CPC Classifications
F; F02; F02D; F02D9/00; F02D9/04; F02D9/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7898
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US925528A
Cited
US934547A
Cited
US1483657A
Cited
US1679367A
Cited
US1940712A
Cited
US1667016A
Cited
US1850405A
Cited
US1890790A
Cited
US1803145A
Cited
US1843238A
Cited
US2168232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |