US2426802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional wall structure system
Assignee: GEN PANEL CORP
•
Filing: 1943-12-29
•
Granted: 1947-09-02
•
Expires: 1963-12-29
Abstract
No abstract record available.
Inventors
- 👤 Konrad L Wachsmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:53
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7409; E04B2/7411; E04B2002/7488; Y; Y10; Y10S; Y10S238/00; Y10S238/01
Claims Analysis
Total Claims: 0
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US2407004A
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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) | 1950-09-01 | 1951-03-03 | 1951-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-01 | 1955-03-03 | 1955-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-01 | 1959-03-03 | 1959-09-02 | $7700.00 | Window Closed / Lapsed |