US3480042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
O-ring seal seating arrangement for rotary plug valve
Assignee: Mueller Co
•
Filing: 1967-10-12
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Granted: 1969-11-25
•
Expires: 1987-10-12
Abstract
No abstract record available.
Inventors
- 👤 Frank H Mueller
- 👤 William L Hauffe
- 👤 William A Hood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:16
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/04; F16K5/0457; F16K5/0478; Y; Y10; Y10S; Y10S277/00; Y10S277/91; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86638; Y10T137/86646
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2604293A
Cited
US2713989A
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US2911187A
Cited
US3077902A
Cited
US3155368A
Cited
GB983178A
Cited
FR1450707A
Cited
FR1475847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |