US2986168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve
Assignee: Individual
•
Filing: 1958-10-08
•
Granted: 1961-05-30
•
Expires: 1978-10-08
Abstract
No abstract record available.
Inventors
- 👤 Sikula Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:55
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/06; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86919; Y10T137/87056; Y10T137/87064; Y10T137/877; Y10T137/87708; Y10T137/8778
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL44059C
Cited
US2534509A
Cited
US1095003A
Cited
US1603082A
Cited
US2781783A
Cited
FR1090133A
Cited
GB747378A
Cited
AT190810B
Cited
US2793653A
Cited
FR1138043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |