US2979400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous media
Assignee: Purolator Products Inc
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Filing: 1959-02-04
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Granted: 1961-04-11
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Expires: 1979-02-04
Abstract
No abstract record available.
Inventors
- 👤 Herman C Mouwen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:53
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/14; B01D39/20; B01D39/2027; B01D39/2031; B01D39/2034; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/496; Y10T29/49604; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12021; Y10T428/12028; Y10T428/12063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
THE METHOD OF MAKING A CONVOLUTED POROUS FILTER ARTICLE OF DESIRED CONFIGURATION COMPRISING DEPOSITING A MIXTURE OF VISXOUS RESINOUS MATERIAL CONSISTING OF DEPOLYMERIZABLE POLYMERIZED-MONO-OLEFINIC RESIN AND METAL POWDER ON A SCREEN MEMBER TO FORM A CONTINUOUS PHASE THEREON, SOLIDIFYING SAID RESINOUS MATERIAL, CONVOLUTING SAID MEMBER INTO THE DESIRED FILTER CONFIGURATION, APPLYMEMBER TO VOLATILIZE SAID RESINOUS MATERIAL AND FUSE THE METAL POWDER AND SCREEN MEMBER TOGETHER.
Claim 2
Independent Claim
65 words
THE METHOD OF MAKING A CONVOLUTED POROUS FILTER ARTICLE OF DESIRED CONFIGURATION COMPRISING DEPOSITING A MIXTURE OF VISXOUS RESINOUS MATERIAL CONSISTING OF DEPOLYMERIZABLE POLYMERIZED-MONO-OLEFINIC RESIN AND METAL POWDER ON A SCREEN MEMBER TO FORM A CONTINUOUS PHASE THEREON, SOLIDIFYING SAID RESINOUS MATERIAL, CONVOLUTING SAID MEMBER INTO THE DESIRED FILTER CONFIGURATION, APPLYMEMBER TO VOLATILIZE SAID RESINOUS MATERIAL AND FUSE THE METAL POWDER AND SCREEN MEMBER TOGETHER.
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) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |