Patent US3515778A successfully refreshed from Google Patents.
US3515778A
Expired / Lapsed
US
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Continuous molding of thermoplastic resin
Assignee: EIDP Inc
•
Filing: 1967-03-02
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Granted: 1970-06-02
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Expires: 1987-03-02
Abstract
No abstract record available.
Inventors
- 👤 Reuben T Fields
- 👤 Martval J Hartig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:36
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/22; B29C43/222; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29C48/25; B29C48/30; B29C48/35; B29C48/92; B29C2948/00; B29C2948/92; B29C2948/92504; B29C2948/92514; B29C2948/92609; B29C2948/92647; B29C2948/92704; B29C2948/92809; B29C2948/92819; B29C2948/92857; B29C2948/92904; B29C2948/92923; B29C48/12; B29L; B29L2011/00; B29L2011/0083; B29L2028/00; Y; Y10; Y10S; Y10S264/00; Y10S264/47; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/26
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) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |