US3083834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Pall Corp
•
Filing: 1959-09-01
•
Granted: 1963-04-02
•
Expires: 1979-09-01
Abstract
No abstract record available.
Inventors
- 👤 David B Pall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:02
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/22; B01D25/26; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/50; B01D29/56; B01D29/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A FILTER UNIT COMPRISING IN COMBINATION, AN ENCLOSURE HAVING OPENING THERETHROUGH FOR ENTRY AND EXIT OF FLUID, AND, DISPOSED WITHIN SAID ENCLOSURE, A FILTER ASSEMBLY COMPRISING AN INLET SPACING ELEMENT FOR PASSAGE OF FLUID TO BE FILTERED ENTERING SAID ASSEMBLY, AN OUTLET SPACING ELEMENT COEXTENSIVE WITH THE INLET SPACING ELEMENT FOR EXIT OF FILTERED FLUID FROM THE ASSEMBLY, AND SUP-
Claim 2
Dependent Claim
60 words
A FILTER UNIT COMPRISING IN COMBINATION, AN ENCLOSURE HAVING OPENING THERETHROUGH FOR ENTRY AND EXIT OF FLUID, AND, DISPOSED WITHIN SAID ENCLOSURE, A FILTER ASSEMBLY COMPRISING AN INLET SPACING ELEMENT FOR PASSAGE OF FLUID TO BE FILTERED ENTERING SAID ASSEMBLY, AN OUTLET SPACING ELEMENT COEXTENSIVE WITH THE INLET SPACING ELEMENT FOR EXIT OF FILTERED FLUID FROM THE ASSEMBLY, AND SUP-
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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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |