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US2331146A
Expired / Lapsed
US
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Method of felting glass fibers
Assignee: Owens Corning
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Filing: 1940-01-06
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Granted: 1943-10-05
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Expires: 1960-01-06
Abstract
No abstract record available.
Inventors
- 👤 Slayter Games
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:55
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/02; F16L59/021; F16L59/022; F16L59/023; D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-10-04 | 1947-04-05 | 1947-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-10-04 | 1951-04-05 | 1951-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-10-04 | 1955-04-05 | 1955-10-05 | $7700.00 | Window Closed / Lapsed |