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Patent US2523920A successfully refreshed from Google Patents.
US2523920A
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Reinforced wall structure
Assignee: Individual
•
Filing: 1946-02-07
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Granted: 1950-09-26
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Expires: 1966-02-07
Abstract
No abstract record available.
Inventors
- 👤 Jesse B Piatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:37
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/28; E04B2002/0297
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1130722A
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US1100531A
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US1785067A
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US1750833A
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US1963056A
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US1924724A
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US2006070A
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US2182593A
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US2351615A
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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) | 1953-09-25 | 1954-03-27 | 1954-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-25 | 1958-03-27 | 1958-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-25 | 1962-03-27 | 1962-09-26 | $7700.00 | Window Closed / Lapsed |