Patent US2638983A successfully refreshed from Google Patents.
US2638983A
Expired / Lapsed
US
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Apparatus for the manufacture of inlaid flexible smooth surface coverings and the like
Assignee: Congoleum Industries Inc
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Filing: 1950-04-08
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Granted: 1953-05-19
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Expires: 1970-04-08
Abstract
No abstract record available.
Inventors
- 👤 Ward Hugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:00
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0028; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1317; Y10T156/1322; Y10T156/133; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1751; Y10T156/1754; Y10T156/1756; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/21; Y10T83/2105; Y10T83/2107; Y10T83/2109; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4812; Y10T83/4815
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1838307A
Cited
US1784487A
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US2033736A
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US2112419A
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US2393745A
Cited
US2519159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |