Patent US2425883A successfully refreshed from Google Patents.
US2425883A
Expired / Lapsed
US
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Concrete structural element reinforced with glass filaments
Assignee: Individual
•
Filing: 1941-08-08
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Granted: 1947-08-19
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Expires: 1961-08-08
Abstract
No abstract record available.
Inventors
- 👤 John G Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:26
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/07; Y; Y10; Y10S; Y10S264/00; Y10S264/53; Y10S52/00; Y10S52/07
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) | 1950-08-18 | 1951-02-17 | 1951-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-18 | 1955-02-17 | 1955-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-18 | 1959-02-17 | 1959-08-19 | $7700.00 | Window Closed / Lapsed |