Patent US2465889A successfully refreshed from Google Patents.
US2465889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection molding apparatus
Assignee: Lester Engineering Co
•
Filing: 1945-04-16
•
Granted: 1949-03-29
•
Expires: 1965-04-16
Abstract
No abstract record available.
Inventors
- 👤 Lester Nathan
- 👤 William H Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:21
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/03
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2111857A
Cited
US2202140A
Cited
US2187212A
Cited
US2274800A
Cited
US2193832A
Cited
US2344176A
Cited
US2181157A
Cited
GB541787A
Cited
US2355613A
Cited
US2359840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |