Patent US2305684A successfully refreshed from Google Patents.
US2305684A
Expired / Lapsed
US
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Method of molding building panels
Assignee: Individual
•
Filing: 1939-01-24
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Granted: 1942-12-22
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Expires: 1959-01-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:43
CPC Classifications
B; B28; B28B; B28B23/00; B28B23/02; B28B23/028; E; E04; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/288; Y; Y10; Y10S; Y10S264/00; Y10S264/57
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) | 1945-12-21 | 1946-06-22 | 1946-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-12-21 | 1950-06-22 | 1950-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-12-21 | 1954-06-22 | 1954-12-22 | $7700.00 | Window Closed / Lapsed |