US2790677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic self-cleaning shower heads
Assignee: Sloan Valve Co
•
Filing: 1955-09-13
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Granted: 1957-04-30
•
Expires: 1975-09-13
Abstract
No abstract record available.
Inventors
- 👤 Jacques J Filliung
- 👤 Robert E Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:40
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/30; B05B1/3006; B05B15/00; B05B15/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1830694A
Cited
US2092519A
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US2534549A
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US2583234A
Cited
US2657955A
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US2688515A
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US2689151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |