US3395803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for filtration of liquids in container
Assignee: SUMIMOTO SCIENT I CO Ltd
•
Filing: 1966-03-03
•
Granted: 1968-08-06
•
Expires: 1986-03-03
Abstract
No abstract record available.
Inventors
- 👤 Sumimoto Seiji
- 👤 Sumimoto Morio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:16
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/05; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/21; B01D29/213; B01D29/50; B01D29/52; B01D29/62; B01D29/70; B01D29/72; B01D35/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US367576A
Cited
US1647808A
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US1696313A
Cited
US2347092A
Cited
US2460084A
Cited
US2788125A
Cited
US2935196A
Cited
US3109812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |