US2592658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion head for molding synthetic resins
Assignee: Individual
•
Filing: 1948-02-21
•
Granted: 1952-04-15
•
Expires: 1968-02-21
Abstract
No abstract record available.
Inventors
- 👤 Colombo Roberto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:24
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/335; B29C48/336; B29C48/03; B29C48/09; B29C48/16; B29C48/18; B29C48/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US37112A
Cited
US876755A
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US1637207A
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US1595470A
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US1952469A
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US2057467A
Cited
US1933212A
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US2096362A
Cited
US2174779A
Cited
GB535311A
Cited
US2389084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |