US2793080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nozzle for spraying cementitious materials
Assignee: Individual
•
Filing: 1952-04-18
•
Granted: 1957-05-21
•
Expires: 1972-04-18
Abstract
No abstract record available.
Inventors
- 👤 Warren G Brown
- 👤 Warren D Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:56
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; E04F21/12; B; B05; B05B; B05B7/00; B05B7/14; B05B7/1481; B05B7/1486
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US208330A
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US221349A
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NL11067C
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US1657663A
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US2437042A
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US2564896A
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US2543517A
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US2577664A
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US2671692A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-20 | 1960-11-19 | 1961-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-20 | 1964-11-19 | 1965-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-20 | 1968-11-19 | 1969-05-21 | $7700.00 | Window Closed / Lapsed |