Patent US2589008A successfully refreshed from Google Patents.
US2589008A
Expired / Lapsed
US
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Apparatus for forming fibrous mats
Assignee: Owens Corning
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Filing: 1947-07-03
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Granted: 1952-03-11
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Expires: 1967-07-03
Abstract
No abstract record available.
Inventors
- 👤 George M Lannan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:21
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/70; D04H1/72; D04H1/732
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US128697A
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US437303A
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US765135A
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US1420162A
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US1948395A
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US1928699A
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US1719035A
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US2233433A
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US2477555A
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US2467291A
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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) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |