US3428089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diverter valve assembly
Assignee: ROSTRA ENGINEERED COMPONENTS Inc A CORP OF CT
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Filing: 1967-03-09
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Granted: 1969-02-18
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Expires: 1987-03-09
Abstract
No abstract record available.
Inventors
- 👤 Henry J Kachergis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:28
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/02; B01D35/04; B01D35/043; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85946; Y10T137/86493; Y10T137/86718; Y10T137/86726
Claims Analysis
Total Claims: 0
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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) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |