US3369489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water pressure booster system
Assignee: Syncroflo Inc
•
Filing: 1965-08-30
•
Granted: 1968-02-20
•
Expires: 1985-08-30
Abstract
No abstract record available.
Inventors
- 👤 Robert F Schaub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:52
CPC Classifications
E; E03; E03B; E03B5/00; E03B5/02; E03B5/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2741986A
Cited
US2888875A
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US3141475A
Cited
US3135282A
Cited
US3198121A
Cited
US3195555A
Cited
US3294023A
Cited
US3295450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |