US2963762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aggregate feed and stripper apparatus for concrete block machines
Assignee: Bergen Machine and Tool Co Inc
•
Filing: 1957-07-09
•
Granted: 1960-12-13
•
Expires: 1977-07-09
Abstract
No abstract record available.
Inventors
- 👤 John E Kovach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:30
CPC Classifications
B; B28; B28B; B28B13/00; B28B13/02; B28B13/0215; B28B13/023; B28B1/00; B28B1/08; B28B1/093; B28B1/0935
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1029560A
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US1029561A
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US1267189A
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FR887414A
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US2544453A
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US2652613A
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US2532049A
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US2667679A
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US2717435A
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US2686950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |