US3379206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential pressure indicating and fluid bypass device
Assignee: MICHIGAN DYNAMICS Inc A CORP OF MI
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Filing: 1965-06-09
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Granted: 1968-04-23
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Expires: 1985-06-09
Abstract
No abstract record available.
Inventors
- 👤 James C Whiting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:45
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/14; B01D35/143; B01D35/147; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2562; Y10T137/8158; Y10T137/8225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2935040A
Cited
US2954751A
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US3080972A
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US2998138A
Cited
US3011470A
Cited
US3117550A
Cited
US3150633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |