US3406722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure tank equipment for water supply systems
Assignee: Individual
•
Filing: 1965-10-18
•
Granted: 1968-10-22
•
Expires: 1985-10-18
Abstract
No abstract record available.
Inventors
- 👤 Arthur P Ruth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:18
CPC Classifications
F; F16; F16J; F16J12/00; F04; F04B; F04B11/00; F04B11/0008; F04B11/0016; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B1/16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F16L55/053; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3151; F15B2201/3156; F15B2201/40; F15B2201/41; F15B2201/411; F15B2201/415; F15B2201/4155
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US841791A
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US1579891A
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US2630834A
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US2761472A
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US2838073A
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US2811925A
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US2845951A
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US2828769A
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US2947326A
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US3065766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |