Patent US2436993A successfully refreshed from Google Patents.
US2436993A
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US
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Apparatus for injection molding
Assignee: HPM Development Corp
•
Filing: 1945-08-04
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Granted: 1948-03-02
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Expires: 1965-08-04
Abstract
No abstract record available.
Inventors
- 👤 Jr John R Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:21
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/72; B29C45/46; B29C45/53; Y; Y10; Y10S; Y10S264/00; Y10S264/46; Y10S425/00; Y10S425/228
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR753191A
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US1645704A
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FR645093A
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US1916495A
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US1919534A
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US1997074A
Cited
US2017216A
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US2274279A
Cited
US2226448A
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US2381866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-02 | 1951-09-01 | 1952-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-02 | 1955-09-01 | 1956-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-02 | 1959-09-01 | 1960-03-02 | $7700.00 | Window Closed / Lapsed |