US2575577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waterproofed fabric and method of producing it
Assignee: Wingfoot Corp
•
Filing: 1946-10-31
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Granted: 1951-11-20
•
Expires: 1966-10-31
Abstract
No abstract record available.
Inventors
- 👤 David N Beauchamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:32
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/693; C; C08; C08K; C08K3/00; C08K3/34; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2139; Y10T442/2221; Y10T442/2246
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A WATER-IMPERVIOUS AND WATER VAPOR-PERMEABLE FABRIC WHICH COMPRISES A WOVEN TEXTILE FABRIC COATED WITH A CONTINUOUS LAYER OF RUBBERLIKE POLYCHLOROPRENE, SAID POLYMER CONTAINING INTIMATELY DISPERSED THEREIN FROM TWO SIX VOLUMES, BASED ON THE POLYMER, OF A HYDROPHIC DIATOMACEOUS EARTH
Claim 2
Dependent Claim
39 words
A WATER-IMPERVIOUS AND WATER VAPOR-PERMEABLE FABRIC WHICH COMPRISES A WOVEN TEXTILE FABRIC COATED WITH A CONTINUOUS LAYER OF RUBBERLIKE POLYCHLOROPRENE, SAID POLYMER CONTAINING INTIMATELY DISPERSED THEREIN FROM TWO SIX VOLUMES, BASED ON THE POLYMER, OF A HYDROPHIC DIATOMACEOUS EARTH
References Cited (Backward Citations)
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Cited
US2115154A
Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |