US2792671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sandblast nozzle assembly
Assignee: Individual
•
Filing: 1955-12-30
•
Granted: 1957-05-21
•
Expires: 1975-12-30
Abstract
No abstract record available.
Inventors
- 👤 Edward A Sprigg
- 👤 Jr Richard T Venner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:52
CPC Classifications
B; B24; B24C; B24C5/00; B24C5/02; B24C5/04; B22; B22C; B22C15/00; B22C15/23; B22C15/24; B22C15/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2008871A
Cited
US1876639A
Cited
US2038249A
Cited
US2005613A
Cited
FR838671A
Cited
US2333264A
Cited
US2717476A
Cited
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 |