Patent US2942731A successfully refreshed from Google Patents.
US2942731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for salvaging waste concrete material
Assignee: Individual
•
Filing: 1957-08-09
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Granted: 1960-06-28
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Expires: 1977-08-09
Abstract
No abstract record available.
Inventors
- 👤 Robert B Soldini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:12
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/48; B03B5/56; B03B9/00; B03B9/06; B03B9/061; B03B9/063; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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CA526439A
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US1097855A
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US1179842A
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US1575601A
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US1735738A
Cited
US2058959A
Cited
US2331135A
Cited
US2588592A
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US2609925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |