Patent US2428325A successfully refreshed from Google Patents.
US2428325A
Expired / Lapsed
US
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Reinforced plywood
Assignee: Owens Corning
•
Filing: 1942-10-30
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Granted: 1947-09-30
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Expires: 1962-10-30
Abstract
No abstract record available.
Inventors
- 👤 Howard W Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:47
CPC Classifications
B; B27; B27D; B27D1/00; B27D1/04; B27D1/08; Y; Y10; Y10S; Y10S273/00; Y10S273/07; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24132; Y10T428/249921; Y10T428/249924; Y10T428/249925; Y10T428/24994; Y10T428/249942; Y10T428/249946; Y10T428/24995
Claims Analysis
Total Claims: 0
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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) | 1950-09-29 | 1951-03-31 | 1951-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-29 | 1955-03-31 | 1955-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-29 | 1959-03-31 | 1959-09-30 | $7700.00 | Window Closed / Lapsed |