Patent US2919475A successfully refreshed from Google Patents.
US2919475A
Expired / Lapsed
US
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Felting apparatus and method
Assignee: International Paper Co
•
Filing: 1953-06-15
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Granted: 1960-01-05
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Expires: 1973-06-15
Abstract
No abstract record available.
Inventors
- 👤 Heppenstall Thomas Earl
- 👤 Arthur L Mottet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:27
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/10; B27N3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1336402A
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USRE23044E
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US1510236A
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US1812108A
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US2068587A
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US2635301A
Cited
US2653353A
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US2746096A
Cited
US2816327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |