US3033227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball valve
Assignee: Walworth Co
•
Filing: 1960-03-25
•
Granted: 1962-05-08
•
Expires: 1980-03-25
Abstract
No abstract record available.
Inventors
- 👤 Goldman Edward Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:22
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/20; F16K5/201; F16K5/06; F16K5/0626; F16K5/0642; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6154; Y10T137/6157
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR676093A
Cited
US2283985A
Cited
US2578396A
Cited
US2475702A
Cited
US2839266A
Cited
FR1220081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |