Patent US2327079A successfully refreshed from Google Patents.
US2327079A
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Method of extrusion molding
Assignee: GROTELITE Co
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Filing: 1938-03-12
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Granted: 1943-08-17
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Expires: 1958-03-12
Abstract
No abstract record available.
Inventors
- 👤 George W Wacker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:46
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/462; B29C45/463; B29C31/00; B29C31/04; B29C31/06; Y; Y10; Y10S; Y10S425/00; Y10S425/039
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) | 1946-08-16 | 1947-02-15 | 1947-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-16 | 1951-02-15 | 1951-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-16 | 1955-02-15 | 1955-08-17 | $7700.00 | Window Closed / Lapsed |