Patent US2499532A successfully refreshed from Google Patents.
US2499532A
Expired / Lapsed
US
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Mold for casting revetment mat sections
Assignee: Individual
•
Filing: 1947-02-07
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Granted: 1950-03-07
•
Expires: 1967-02-07
Abstract
No abstract record available.
Inventors
- 👤 Shearer David Mcd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:56
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/0088; B28B7/24; B28B7/241; B28B7/246; Y; Y10; Y10S; Y10S264/00; Y10S264/57
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US787199A
Cited
US896330A
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US1457999A
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US1439826A
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US1592591A
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US1770219A
Cited
US2306107A
Cited
US2356603A
Cited
US2445894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |