Patent US2802697A successfully refreshed from Google Patents.
US2802697A
Expired / Lapsed
US
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Cleaning nozzle
Assignee: Individual
•
Filing: 1955-03-28
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Granted: 1957-08-13
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Expires: 1975-03-28
Abstract
No abstract record available.
Inventors
- 👤 Pumphrey Sallie Mae
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:14
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/04; B60; B60S; B60S3/00; B60S3/04; B60S3/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |