US3530993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strainer valves
Assignee: LIQUID-SOLIDS SEPARATION Corp A DE CORP
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Filing: 1968-09-19
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Granted: 1970-09-29
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Expires: 1988-09-19
Abstract
No abstract record available.
Inventors
- 👤 Garland L Fulton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:36
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/24; B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/44; B01D29/48; B01D29/62; B01D29/66; B01D29/668; B01D29/70; B01D29/88; B01D29/90; B01D29/908; B01D35/00; B01D35/12
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) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |