Patent US2668310A successfully refreshed from Google Patents.
US2668310A
Expired / Lapsed
US
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Nozzle structure for rotary brushing devices
Assignee: Individual
•
Filing: 1948-12-10
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Granted: 1954-02-09
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Expires: 1968-12-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph D Conway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:57
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/02; A46B13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR467873A
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US1191860A
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US1231825A
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US1418088A
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US1927226A
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US1869179A
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US1931893A
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US1971790A
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US2232493A
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US2358119A
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US2367900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-08 | 1957-08-10 | 1958-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-08 | 1961-08-10 | 1962-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-08 | 1965-08-10 | 1966-02-09 | $7700.00 | Window Closed / Lapsed |