US3028877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure and flow control valve
Assignee: Individual
•
Filing: 1957-05-02
•
Granted: 1962-04-10
•
Expires: 1977-05-02
Abstract
No abstract record available.
Inventors
- 👤 John W Thieme
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:02
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7835; Y10T137/8158; Y10T137/8326; Y10T137/8593; Y10T137/86493; Y10T137/86863; Y10T137/86871; Y10T137/87917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1098203A
Cited
US1244382A
Cited
US1105547A
Cited
US1640620A
Cited
US1997365A
Cited
US2317927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |