US2774110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of extrusion of furane resins
Assignee: Electro Chemical Engineering &
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Filing: 1954-07-19
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Granted: 1956-12-18
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Expires: 1974-07-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Walters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:21
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/022; B29C48/06; B29C48/07; B29C48/08; B29K; B29K2101/00; B29K2101/10; B29K2301/00; B29K2301/10
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) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |