US2989071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball cock valve
Assignee: Mansfield Sanitary Inc
•
Filing: 1957-05-16
•
Granted: 1961-06-20
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Expires: 1977-05-16
Abstract
No abstract record available.
Inventors
- 👤 Howard A Fulton
- 👤 Henry Ira Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:09
CPC Classifications
F; F16; F16K; F16K47/00; F16K47/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7446; Y10T137/7449; Y10T137/7494
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |