US2658378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete block construction
Assignee: Individual
•
Filing: 1950-10-10
•
Granted: 1953-11-10
•
Expires: 1970-10-10
Abstract
No abstract record available.
Inventors
- 👤 Fiordelisi Ernesto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:47
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/30; E04C3/34; E04B; E04B2/00; E04B2/02; E04B2/28; E04B2002/0297
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US690811A
Cited
US838582A
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GB149385A
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FR21481E
Cited
US1343926A
Cited
US1374356A
Cited
GB228204A
Cited
US1891837A
Cited
US1870926A
Cited
US1915011A
Cited
FR733278A
Cited
US2372038A
Cited
FR907515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |