US3003290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced concrete structure
Assignee: Individual
•
Filing: 1957-10-08
•
Granted: 1961-10-10
•
Expires: 1977-10-08
Abstract
No abstract record available.
Inventors
- 👤 Lerner Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:00
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/01; E04C5/06; E04B; E04B5/00; E04B5/16; E04B5/32; E04C2/00; E04C2/02; E04C2/04; E04C2/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US545301A
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US774512A
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US910947A
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US1109785A
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US1158861A
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US1501850A
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US1694542A
Cited
US1671893A
Cited
US2116886A
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US2589021A
Cited
CH295920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |