US2509783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for molding
Assignee: HPM Development Corp
•
Filing: 1945-10-17
•
Granted: 1950-05-30
•
Expires: 1965-10-17
Abstract
No abstract record available.
Inventors
- 👤 Lloyd D Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:08
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/02; B30; B30B; B30B11/00; B30B11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1526788A
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US1679408A
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US1897462A
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US1965670A
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US2135803A
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US2136240A
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US2143429A
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US2253003A
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US2259094A
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US2348197A
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US2325687A
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US2350971A
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US2318819A
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US2338491A
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US2398227A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |