US3456916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball valve assembly
Assignee: Fisher Governor Co
•
Filing: 1967-01-12
•
Granted: 1969-07-22
•
Expires: 1987-01-12
Abstract
No abstract record available.
Inventors
- 👤 Glenn R Ytzen
- 👤 Wilbur D Hutchens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:18
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0663; F16K5/0684; F16K5/0626; F16K5/0642; F16K5/08; F16K5/14; F16K5/20; F16K5/205; F16K5/208
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |