US2523920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced wall structure
Assignee: Individual
•
Filing: 1946-02-07
•
Granted: 1950-09-26
•
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 02:19
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
Cited
US1963056A
Cited
US1924724A
Cited
US2006070A
Cited
US2182593A
Cited
US2351615A
Cited
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 |