US3239191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Art of manufacturing ball valves
Assignee: ATI Ladish Co Inc
•
Filing: 1963-06-20
•
Granted: 1966-03-08
•
Expires: 1983-06-20
Abstract
No abstract record available.
Inventors
- 👤 Otto F Widera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:25
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/06; F16K27/067
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3006599A
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US3067978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |