US2583957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston ring assembly
Assignee: Standard Parts Co
•
Filing: 1949-02-25
•
Granted: 1952-01-29
•
Expires: 1969-02-25
Abstract
No abstract record available.
Inventors
- 👤 George W Marvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:12
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/12; F16J9/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US750875A
Cited
US1014782A
Cited
US1595855A
Cited
US1755673A
Cited
US1801056A
Cited
FR667847A
Cited
US1781207A
Cited
US2030927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |