US2676371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston molding core
Assignee: Individual
•
Filing: 1950-05-10
•
Granted: 1954-04-27
•
Expires: 1970-05-10
Abstract
No abstract record available.
Inventors
- 👤 William M Venner
- 👤 Jr Percy L Bowser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:50
CPC Classifications
B; B22; B22D; B22D15/00; B22D15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US613524A
Cited
US1408980A
Cited
US1645729A
Cited
US1959648A
Cited
US1993439A
Cited
US1975038A
Cited
US2286994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |