US3179534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated oleophobic fabrics
Assignee: Dow Silicones Corp
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Filing: 1962-03-15
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Granted: 1965-04-20
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Expires: 1982-03-15
Abstract
No abstract record available.
Inventors
- 👤 Paul A Law
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:16
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172; Y10T442/273; Y10T442/2762; Y10T442/277; Y10T442/2803; Y10T442/2926; Y10T442/2992
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A COATED FABRIC HAVING OPEN PORES, SAID FABRIC BEING COATED WITH UP TO 25% BY WEIGHT OF A CURED METHYLPOLYSILOXANE CONSISTING ESSENTIALLY OF POLYDIMETHYLSILOXANE, WHICH SILOXANE WHEN APPLIED TO THE FABRIC HAD A VISCOSITY OF AT LEAST 1,000,000 CS. AT 25*C. AND SAID COATED FABRIC BEING OLEOPHOBIC TO SUCH AN EXTENT THAT A DROP OF U.S.P. HEAVY MINERAL OIL WILL NOT WET THE SURFACE THEREOF FOR A PERIOD OF AT LEAST TWO MINUTES.
Claim 2
Dependent Claim
73 words
A COATED FABRIC HAVING OPEN PORES, SAID FABRIC BEING COATED WITH UP TO 25% BY WEIGHT OF A CURED METHYLPOLYSILOXANE CONSISTING ESSENTIALLY OF POLYDIMETHYLSILOXANE, WHICH SILOXANE WHEN APPLIED TO THE FABRIC HAD A VISCOSITY OF AT LEAST 1,000,000 CS. AT 25*C. AND SAID COATED FABRIC BEING OLEOPHOBIC TO SUCH AN EXTENT THAT A DROP OF U.S.P. HEAVY MINERAL OIL WILL NOT WET THE SURFACE THEREOF FOR A PERIOD OF AT LEAST TWO MINUTES.
References Cited (Backward Citations)
US2736721A
Cited
US2911327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |