US2624079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of air-laid felts
Assignee: Wood Conversion Co
•
Filing: 1949-08-16
•
Granted: 1953-01-06
•
Expires: 1969-08-16
Abstract
No abstract record available.
Inventors
- 👤 Thure C Duvall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:28
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/72; D04H1/732; D04H1/40; D04H1/42; D04H1/4374; Y; Y10; Y10T; Y10T442/00; Y10T442/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US41727A
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US255381A
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US292187A
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US1503605A
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US1786669A
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US2232647A
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US2255206A
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US2543101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |