Patent US2931076A successfully refreshed from Google Patents.
US2931076A
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Apparatus and method for producing fibrous structures
Assignee: Fibrofelt Corp
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Filing: 1948-11-23
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Granted: 1960-04-05
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Expires: 1968-11-23
Abstract
No abstract record available.
Inventors
- 👤 James D A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:15
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/10; B27N3/14; D; D04; D04H; D04H1/00; D04H1/70; D04H1/72; D04H1/732
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US703682A
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US1786669A
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US2057369A
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US2152901A
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US2218338A
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US2569765A
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US2489079A
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US2587814A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |