Patent US2112513A successfully refreshed from Google Patents.
US3158984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous fabric or structure and the method of making the same
Assignee: Lindsay Wire Weaving Co
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Filing: 1962-08-10
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Granted: 1964-12-01
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Expires: 1982-08-10
Abstract
No abstract record available.
Inventors
- 👤 Clarence A Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:07
CPC Classifications
D; D07; D07B; D07B1/00; D07B1/02; D07B2201/00; D07B2201/20; D07B2201/2001; D07B2201/2002; D07B2201/2047; D07B2201/2048; Y; Y10; Y10S; Y10S162/00; Y10S162/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A POROUS CABLE FOR USE AS A FILTER MEDIA HAVING IMPROVED STRENGTH AND HYDRAULIC CHARACTERISTICS COMPRISING, A PLURALITY OF MONO-FILAMENTS, SAID MONO-FILAMENTS BEING SUBSTANTIALLY NON-CIRCULAR IN CROSS-SECTIONAL CONFIGURATION AND BEING INDEPENDENTLY TWISTED RELATIVE TO ONE ANOTHER TO PROVIDE A PREDETERMINED POROSITY THERETHROUGH, AND ALL OF THE SAID MONO-FILAMENTS BEING TWISTED TOGETHER INTO A BUNDLE TO PROVIDE A UNITARY STRUCTURE HAVING A PREDETERMINED PERMEABILITY THERETHROUGH.
Claim 2
Dependent Claim
64 words
A POROUS CABLE FOR USE AS A FILTER MEDIA HAVING IMPROVED STRENGTH AND HYDRAULIC CHARACTERISTICS COMPRISING, A PLURALITY OF MONO-FILAMENTS, SAID MONO-FILAMENTS BEING SUBSTANTIALLY NON-CIRCULAR IN CROSS-SECTIONAL CONFIGURATION AND BEING INDEPENDENTLY TWISTED RELATIVE TO ONE ANOTHER TO PROVIDE A PREDETERMINED POROSITY THERETHROUGH, AND ALL OF THE SAID MONO-FILAMENTS BEING TWISTED TOGETHER INTO A BUNDLE TO PROVIDE A UNITARY STRUCTURE HAVING A PREDETERMINED PERMEABILITY THERETHROUGH.
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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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |