Patent US2577664A successfully refreshed from Google Patents.
US2577664A
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Discharge nozzle for hydrating cementitious substances under pressure
Assignee: JO ZACH MILLER
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Filing: 1950-03-20
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Granted: 1951-12-04
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Expires: 1970-03-20
Abstract
No abstract record available.
Inventors
- 👤 Pro George Marcus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:50
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; E04F21/12; B; B28; B28C; B28C5/00; B28C5/02; B28C5/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US998762A
Cited
US1370289A
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US1562194A
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US1670677A
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US1847261A
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US2075867A
Cited
US2462323A
Cited
US2534116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-03 | 1955-06-04 | 1955-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-03 | 1959-06-04 | 1959-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-03 | 1963-06-04 | 1963-12-04 | $7700.00 | Window Closed / Lapsed |