US2546290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall structure
Assignee: Individual
•
Filing: 1944-03-11
•
Granted: 1951-03-27
•
Expires: 1964-03-11
Abstract
No abstract record available.
Inventors
- 👤 Roy W Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:41
CPC Classifications
E; E04; E04B; E04B7/00; E04B2/00; E04B2/02; E04B2/28; E04B5/00; E04B5/02; E04B5/04; E04B5/06; E04B2002/0297
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US345944A
Cited
US471610A
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US1375103A
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US1987828A
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US1998049A
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US2082431A
Cited
US2071039A
Cited
US2151384A
Cited
US2267330A
Cited
GB542586A
Cited
US2407004A
Cited
US2413362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |