US3132099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter and method of making same
Assignee: Individual
•
Filing: 1960-11-14
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Granted: 1964-05-05
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Expires: 1980-11-14
Abstract
No abstract record available.
Inventors
- 👤 Eilhauer Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:04
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/08; B01D39/086; B01D39/083; B01D2239/00; B01D2239/06; B01D2239/065; B01D2239/0668; B01D2239/0672; B01D2239/0681; B01D2239/12; B01D2239/1291; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/1234; Y10T428/12361
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
AN ASSEMBLY OF FABRICS FOR MAKING A FILTER COMPRISING A FIRST FABRIC AND A SECOND FABRIC EACH OF WHICH IS COMPOSED OF A PLURALITY OF FIRST AND SECOND FILAMENTS IN CROSSING RELATION WITH RESPECT TO EACH OTHER, SAID FIRST FILAMENTS BEING A MATERIAL RELATIVELY MORE EASILY DESTRUCTIBLE THAN THE MATERIAL OF SAID SECOND FILAMENTS, SAID FABRICS BEING ARRANGED IN SUPERIMPOSED RELATION WITH RESPECT TO EACH OTHER WITH SAID FIRST AND SECOND FILAMENTS OF SAID FIRST AND SECOND FABRICS IN CROSSING RELATION WITH RESPECT TO EACH OTHER, RESPECTIVELY, AND SAID SECOND FILAMENTS OF SAID FIRST AND SECOND FABRICS BEING JOINED TO EACH OTHER AT THEIR CROSSING PORTIONS.
Claim 2
Dependent Claim
106 words
AN ASSEMBLY OF FABRICS FOR MAKING A FILTER COMPRISING A FIRST FABRIC AND A SECOND FABRIC EACH OF WHICH IS COMPOSED OF A PLURALITY OF FIRST AND SECOND FILAMENTS IN CROSSING RELATION WITH RESPECT TO EACH OTHER, SAID FIRST FILAMENTS BEING A MATERIAL RELATIVELY MORE EASILY DESTRUCTIBLE THAN THE MATERIAL OF SAID SECOND FILAMENTS, SAID FABRICS BEING ARRANGED IN SUPERIMPOSED RELATION WITH RESPECT TO EACH OTHER WITH SAID FIRST AND SECOND FILAMENTS OF SAID FIRST AND SECOND FABRICS IN CROSSING RELATION WITH RESPECT TO EACH OTHER, RESPECTIVELY, AND SAID SECOND FILAMENTS OF SAID FIRST AND SECOND FABRICS BEING JOINED TO EACH OTHER AT THEIR CROSSING PORTIONS.
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |