Patent US2175054A successfully refreshed from Google Patents.
US2175054A
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Apparatus for forming hollow articles from organic plastic material
Assignee: Plax Corp
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Filing: 1938-10-18
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Granted: 1939-10-03
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Expires: 1958-10-18
Abstract
No abstract record available.
Inventors
- 👤 Enoch T Ferngren
- 👤 William H Kopitke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:29
CPC Classifications
C; C03; C03B; C03B9/00; C03B9/13; C03B9/14; C03B9/145; B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/395; B29C48/455; B29C49/00; B29C49/02; B29C49/04; B29C49/28; B29C49/30; B29C2949/00; B29C2949/30; B29C2949/3032; B29C2949/3041; B29C48/03; B29C48/09; B29L; B29L2031/00; B29L2031/712; B29L2031/7158
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-10-02 | 1943-04-03 | 1943-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-10-02 | 1947-04-03 | 1947-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-10-02 | 1951-04-03 | 1951-10-03 | $7700.00 | Window Closed / Lapsed |