Patent US2449771A successfully refreshed from Google Patents.
US2449771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liner for engine cylinders
Assignee: Individual
•
Filing: 1945-09-28
•
Granted: 1948-09-21
•
Expires: 1965-09-28
Abstract
No abstract record available.
Inventors
- 👤 Charles H Dolan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:34
CPC Classifications
F; F16; F16J; F16J10/00; F16J10/02; F16J10/04; F16N; F16N15/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1951-09-21 | 1952-03-22 | 1952-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-21 | 1956-03-22 | 1956-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-21 | 1960-03-22 | 1960-09-21 | $7700.00 | Window Closed / Lapsed |