US3409050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow restrictor
Assignee: Individual
•
Filing: 1965-10-12
•
Granted: 1968-11-05
•
Expires: 1985-10-12
Abstract
No abstract record available.
Inventors
- 👤 Wilfred W Weese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:08
CPC Classifications
F; F16; F16K; F16K47/00; F16K47/08; F16K47/10; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7869
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1419876A
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US2389134A
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US2500750A
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US2454929A
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US2489932A
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US2444677A
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US2851060A
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US2936788A
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US2891578A
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US2878836A
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US3150689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |