Patent US2509471A successfully refreshed from Google Patents.
US2898632A
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US
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Molding plastic foam
Assignee: Dayton Formold Inc
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Filing: 1955-10-19
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Granted: 1959-08-11
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Expires: 1975-10-19
Abstract
No abstract record available.
Inventors
- 👤 Irwin Harry Basil
- 👤 Eugene R Waterhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:09
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/38; B29C44/44; B29C44/445; B29C33/00; B29C33/02; B29C33/04; B29C44/3415; B29C44/3426; Y; Y10; Y10S; Y10S264/00; Y10S264/11; Y10S264/14; Y10S264/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |