Patent US2569174A successfully refreshed from Google Patents.
US2569174A
Expired / Lapsed
US
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Thermoplastic injection molding apparatus
Assignee: AUTOMATIC INJECTION MACHINES C
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Filing: 1948-12-07
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Granted: 1951-09-25
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Expires: 1968-12-07
Abstract
No abstract record available.
Inventors
- 👤 Kardorff Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:13
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2107190A
Cited
US2211370A
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US2267644A
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US2277640A
Cited
US2293334A
Cited
US2386697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |