Patent US2942860A successfully refreshed from Google Patents.
US2942860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete gun, mixer and sandblaster
Assignee: Individual
•
Filing: 1956-03-05
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Granted: 1960-06-28
•
Expires: 1976-03-05
Abstract
No abstract record available.
Inventors
- 👤 Ian M Ridley
- 👤 Richard L Klosterman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:29
CPC Classifications
B; B24; B24C; B24C7/00; B24C7/0046; B24C7/0076; B24C7/0053; B24C7/0061; B28; B28C; B28C5/00; B28C5/08; B28C5/10; B28C5/12; B28C5/1223; B28C5/123; E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; E04F21/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1684370A
Cited
US1250918A
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US1553476A
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US1478865A
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US1560666A
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US1810271A
Cited
US2094839A
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US2284250A
Cited
US2637539A
Cited
US2705132A
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 |