US3201927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure for filter container
Assignee: Individual
•
Filing: 1961-08-16
•
Granted: 1965-08-24
•
Expires: 1981-08-16
Abstract
No abstract record available.
Inventors
- 👤 Wachter Karl-August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:45
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/52; B01D46/521; A; A62; A62B; A62B23/00; B01D46/0002; B01D46/0005; B01D46/24; B01D46/2403; B01D46/2411; B01D46/42; B01D46/4227; B01D2265/00; B01D2265/02; B01D2265/029; B01D2271/00; B01D2271/02; B01D2271/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US873425A
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US1511872A
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US2220706A
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US2709524A
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US2843268A
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US2868383A
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US2866574A
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US2958394A
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US2936189A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |