Patent US2779080A successfully refreshed from Google Patents.
US2779080A
Expired / Lapsed
US
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Molding machine for forming concrete cribbing blocks
Assignee: American Marietta Co
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Filing: 1951-11-08
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Granted: 1957-01-29
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Expires: 1971-11-08
Abstract
No abstract record available.
Inventors
- 👤 Earl W Chidester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:44
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/0029; B28B7/0035; B28B7/0041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US779976A
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US1012835A
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US1275121A
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US1421748A
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US1908104A
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US2388679A
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US2353492A
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US2407168A
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US2460167A
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US2535389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |