US2640570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supporting construction for building layers
Assignee: Individual
•
Filing: 1948-02-26
•
Granted: 1953-06-02
•
Expires: 1968-02-26
Abstract
No abstract record available.
Inventors
- 👤 Horowitz Alexandre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:37
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/42; E04C2/421
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US812158A
Cited
GB190601407A
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US1022387A
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GB146276A
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US1357073A
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US1570384A
Cited
US1596360A
Cited
US1778337A
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US1985150A
Cited
US2114901A
Cited
US2055329A
Cited
US2053135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |