Patent US4822359A successfully refreshed from Google Patents.
Patent US2743514A successfully refreshed from Google Patents.
US2743514A
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Method of reinforcing concrete units
Assignee: Individual
•
Filing: 1953-06-01
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Granted: 1956-05-01
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Expires: 1973-06-01
Abstract
No abstract record available.
Inventors
- 👤 George P Duecy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:36
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/12; Y; Y10; Y10S; Y10S60/00; Y10S60/909; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865; Y10T29/49874
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1976589A
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US2140672A
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US2217090A
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US2253093A
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US2569612A
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US2372723A
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US2481357A
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US2600630A
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US2576085A
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US2631015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |