Patent US2447415A successfully refreshed from Google Patents.
US2447415A
Expired / Lapsed
US
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Plastic forming apparatus and method
Assignee: Individual
•
Filing: 1944-07-05
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Granted: 1948-08-17
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Expires: 1964-07-05
Abstract
No abstract record available.
Inventors
- 👤 Lyon George Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:57
CPC Classifications
B; B29; B29C; B29C37/00; B29C37/0003; B29C33/00; B29C43/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1657227A
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US1793089A
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US1754502A
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FR737827A
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US2120328A
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US2027165A
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US2159779A
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GB508598A
Cited
US2272009A
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US2350175A
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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) | 1951-08-17 | 1952-02-16 | 1952-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-17 | 1956-02-16 | 1956-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-17 | 1960-02-16 | 1960-08-17 | $7700.00 | Window Closed / Lapsed |