US2587814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making a fibrous preform
Assignee: Owens Corning
•
Filing: 1946-11-09
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Granted: 1952-03-04
•
Expires: 1966-11-09
Abstract
No abstract record available.
Inventors
- 👤 Gustave W Borkland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:49
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/72; D04H1/732; D04H1/40; D04H1/42; D04H1/4209; D04H1/4218
Claims Analysis
Total Claims: 0
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US2319669A
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US2463759A
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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) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |