US3007579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter structure
Assignee: Pall Corp
•
Filing: 1958-06-16
•
Granted: 1961-11-07
•
Expires: 1978-06-16
Abstract
No abstract record available.
Inventors
- 👤 David B Pall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:08
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/52; B01D46/521; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/21; B01D29/23; B01D29/232; B01D29/39; B01D29/41; B01D29/50; B01D29/56; B01D29/58; B01D35/00; B01D35/02; B01D35/14; B01D35/147; B01D46/24; B01D46/54; B01D46/543; B01D2201/00; B01D2201/04; B01D2201/0461; B01D2265/00; B01D2265/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB497020A
Cited
FR932849A
Cited
US2548965A
Cited
US2640789A
Cited
US2693281A
Cited
US2701062A
Cited
US2730241A
Cited
US2801751A
Cited
US2925650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-06 | 1965-05-08 | 1965-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-06 | 1969-05-08 | 1969-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-06 | 1973-05-08 | 1973-11-07 | $7700.00 | Window Closed / Lapsed |