Patent US3265940A successfully refreshed from Google Patents.
Patent US2997739A successfully refreshed from Google Patents.
US2997739A
Expired / Lapsed
US
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Binder curing of fibrous masses
Assignee: Owens Corning
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Filing: 1959-08-17
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Granted: 1961-08-29
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Expires: 1979-08-17
Abstract
No abstract record available.
Inventors
- 👤 Harry V Smith
- 👤 Richard S Grant
- 👤 Weston C Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:25
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/24; B29C67/248; B29C33/00; B29C33/34; B29C33/36; B29C35/00; B29C35/02; B29C35/0277; B29C35/04; B29L; B29L2023/00; B29L2023/22; B29L2023/225; Y; Y10; Y10S; Y10S264/00; Y10S264/53
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |