US2505902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall structure embodying panel units
Assignee: Individual
•
Filing: 1944-11-25
•
Granted: 1950-05-02
•
Expires: 1964-11-25
Abstract
No abstract record available.
Inventors
- 👤 Madger Arthur Wakefield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:20
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB236259A
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FR617633A
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US1842828A
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US1899091A
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US2139641A
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US2094458A
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US2192970A
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US2311951A
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US2325694A
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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) | 1953-05-01 | 1953-10-31 | 1954-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-01 | 1957-10-31 | 1958-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-01 | 1961-10-31 | 1962-05-02 | $7700.00 | Window Closed / Lapsed |