Patent US2418904A successfully refreshed from Google Patents.
US2418904A
Expired / Lapsed
US
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Production of reinforced composite structures
Assignee: Carbide and Carbon Chemicals Corp
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Filing: 1943-06-23
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Granted: 1947-04-15
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Expires: 1963-06-23
Abstract
No abstract record available.
Inventors
- 👤 Edward W Rugeley
- 👤 Jr Theophilus A Feild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:18
CPC Classifications
D; D06; D06M; D06M17/00; D06M17/04; D06M17/06; B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/164; Y10T442/183; Y10T442/184
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1966856A
Cited
US2185356A
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US2224994A
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US2253000A
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US2261313A
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US2278895A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-14 | 1950-10-14 | 1951-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-14 | 1954-10-14 | 1955-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-14 | 1958-10-14 | 1959-04-15 | $7700.00 | Window Closed / Lapsed |