US2870689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing strip material
Assignee: Individual
•
Filing: 1952-12-04
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Granted: 1959-01-27
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Expires: 1972-12-04
Abstract
No abstract record available.
Inventors
- 👤 Helen E Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:23
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/04; B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/50; B29C70/504; B29C70/508; H01M50/00; H01M50/40; H01M50/403; H01M50/409; H01M50/431; H01M50/44; H01M50/443; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24413; Y10T428/249921; Y10T428/249953; Y10T428/24996; Y10T428/249981
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
63 words
A METHOD OF CONTINUOUSLY MAKING A FIBROUS STRIP OR THE LIKE COMPRISING CONTINUOUSLY SUCTION-DEPOSITING DIELECTRIC FIBERS FROM A FLUID SUSPENSION THEREOF TO ACCRETE A CONTINUOUS POROUS MAT ON A FORMER ADVANCING THROUGH THE SLURRY, AND SPRAYING A PARTICULATE POROUS METAL LAYER ON THE FIBERS THEREON TO BOND THE FIBERS TOGETHER INTO A SELF-SUPPORTING STRIP AND REMOVING SAID SO BONDED STRIP FROM SAID FORMER.
References Cited (Backward Citations)
US322034A
Cited
US1039413A
Cited
US1351374A
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GB310625A
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US1748998A
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US1829187A
Cited
US1856475A
Cited
US1945173A
Cited
US2143406A
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GB483769A
Cited
US2118762A
Cited
US2280789A
Cited
US2328198A
Cited
US2374214A
Cited
US2504744A
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US2547371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |