Patent US4319363A successfully refreshed from Google Patents.
US2860374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stripper mechanism for injection molding
Assignee: Crown Machine and Tool Co Inc
•
Filing: 1955-09-23
•
Granted: 1958-11-18
•
Expires: 1975-09-23
Abstract
No abstract record available.
Inventors
- 👤 James M Harrison
- 👤 Robert E Smucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:41
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/40; B29C45/43
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2309729A
Cited
US2333059A
Cited
US2377393A
Cited
GB571071A
Cited
US2396406A
Cited
US2773284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |