Patent US2860659A successfully refreshed from Google Patents.
US2860659A
Expired / Lapsed
US
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Flow control valve
Assignee: ITT Bell and Gossett Inc
•
Filing: 1954-10-15
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Granted: 1958-11-18
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Expires: 1974-10-15
Abstract
No abstract record available.
Inventors
- 👤 Gilbert F Carlson
- 👤 Harold A Lockhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:18
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7915; Y10T137/7918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US362326A
Cited
US1807594A
Cited
GB190808383A
Cited
US1716722A
Cited
DE847296C
Cited
US2701581A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |