Patent US3427179A successfully refreshed from Google Patents.
US3427179A
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US
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Method of making a porous polyamide fabric
Assignee: Polysar Ltd
•
Filing: 1965-10-23
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Granted: 1969-02-11
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 William J Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:09
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/0086; D06N3/0088; D06N3/009; B; B29; B29C; B29C41/00; B29C41/24; B29C41/28; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/59; D06N3/12; D06N3/125; Y; Y10; Y10S; Y10S264/00; Y10S264/13; Y10S428/00; Y10S428/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB571783A
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GB594075A
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US2547047A
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US2593207A
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US2855631A
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US2937957A
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US2938811A
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US3224894A
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US3173978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |