Patent US2331752A successfully refreshed from Google Patents.
US2331752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated building construction
Assignee: Individual
•
Filing: 1941-09-23
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Granted: 1943-10-12
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Expires: 1961-09-23
Abstract
No abstract record available.
Inventors
- 👤 Charles R Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:34
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; E04B1/612; E04B1/6145; E04B1/6158; E04C; E04C2/00; E04C2/30; E04C2/38; E04C2/386
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) | 1946-10-11 | 1947-04-12 | 1947-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-10-11 | 1951-04-12 | 1951-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-10-11 | 1955-04-12 | 1955-10-12 | $7700.00 | Window Closed / Lapsed |