US2680883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection molding machine
Assignee: HPM Development Corp
•
Filing: 1950-08-04
•
Granted: 1954-06-15
•
Expires: 1970-08-04
Abstract
No abstract record available.
Inventors
- 👤 Bernard D Ashbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:23
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21906E
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DE641142C
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US2279344A
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US2203620A
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US2344176A
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US2373939A
Cited
US2443554A
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US2476550A
Cited
US2493805A
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US2501595A
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US2482243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-14 | 1957-12-14 | 1958-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-14 | 1961-12-14 | 1962-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-14 | 1965-12-14 | 1966-06-15 | $7700.00 | Window Closed / Lapsed |