Patent US5592171A successfully refreshed from Google Patents.
US2809900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article of manufacture containing plastic and method for making the same
Assignee: Goodrich Corp
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Filing: 1954-08-04
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Granted: 1957-10-15
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Expires: 1974-08-04
Abstract
No abstract record available.
Inventors
- 👤 Donald V Sarbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:42
CPC Classifications
B; B32; B32B; B32B27/00; D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/244; D06N; D06N3/00; D06N3/0043; D06N3/0052; D06N3/04; D06N3/06; Y; Y10; Y10S; Y10S424/00; Y10S424/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
THE METHOD WHICH COMPRISES MIXING TOGETHER TO FORM A HOMOGENOUS APPEARING COMPOSITION A PROCESSABLE POLYMER OF A MONOMERIC MATERIAL IN WHICH EACH CONSTITUENT CONTAINS A SINGLE OLEFNIC DOUBLE BOND AND IN WHICH THE PREDOMINANT MONOMER IS A HALOETHYLENE SELECTED FROM THE GROUP CONSISTING OF VINYL CHLORIDE, VINYL BROMIDE, VINYL FLUORIDE, VINYLIDENE CHLORIDE, VINLIDENE BROMIDE, VINYLIDENE FLUORIDE AND MIXTURES THEREOF AND FROM ABOUT 50% TO 300% BY WEIGHT BASED ON THE WEIGHT OF SAID POLYMER OF A POWDERED, NON-HYGROSCOPIC MATERIAL SOLUBLE IN A NON-SOLVENT FOR SAID POLYMER, ESSENTIALLY ALL OF THE PARTICLES OF SAID NON-HYGROSCOPIC MATERIAL PASSING THROUGH ABOUT A 65 MESH USS SCREEN AND A PREDOMINANT AMOUNT OF SAID PARTICLES PASSING THROUGH ABOUT A 100 MESSH USS SCREEN, FORMING A THIN LAYER OF THE RESULTING COMPOSITION ON A BASE, HEATING SAID LAYER TO FUSE SAID LAYER AND TREATING SAID FUSED LAYER WITH A SOLVENT WHICH IS A SOLVENT FOR SAID NON-HYGROSCOPIC MATERIAL AND IS A NON-SOLVENT FOR SAID POLYMER TO REMOVE SAID NON-HYGROSCOPIC MATERIAL FROM SAID LAYER TO PROVIDE A VAPOR-PERMEABLE, WATERRESISTANT POLYMERIC LAYER.
Claim 2
Independent Claim
174 words
THE METHOD WHICH COMPRISES MIXING TOGETHER TO FORM A HOMOGENOUS APPEARING COMPOSITION A PROCESSABLE POLYMER OF A MONOMERIC MATERIAL IN WHICH EACH CONSTITUENT CONTAINS A SINGLE OLEFNIC DOUBLE BOND AND IN WHICH THE PREDOMINANT MONOMER IS A HALOETHYLENE SELECTED FROM THE GROUP CONSISTING OF VINYL CHLORIDE, VINYL BROMIDE, VINYL FLUORIDE, VINYLIDENE CHLORIDE, VINLIDENE BROMIDE, VINYLIDENE FLUORIDE AND MIXTURES THEREOF AND FROM ABOUT 50% TO 300% BY WEIGHT BASED ON THE WEIGHT OF SAID POLYMER OF A POWDERED, NON-HYGROSCOPIC MATERIAL SOLUBLE IN A NON-SOLVENT FOR SAID POLYMER, ESSENTIALLY ALL OF THE PARTICLES OF SAID NON-HYGROSCOPIC MATERIAL PASSING THROUGH ABOUT A 65 MESH USS SCREEN AND A PREDOMINANT AMOUNT OF SAID PARTICLES PASSING THROUGH ABOUT A 100 MESSH USS SCREEN, FORMING A THIN LAYER OF THE RESULTING COMPOSITION ON A BASE, HEATING SAID LAYER TO FUSE SAID LAYER AND TREATING SAID FUSED LAYER WITH A SOLVENT WHICH IS A SOLVENT FOR SAID NON-HYGROSCOPIC MATERIAL AND IS A NON-SOLVENT FOR SAID POLYMER TO REMOVE SAID NON-HYGROSCOPIC MATERIAL FROM SAID LAYER TO PROVIDE A VAPOR-PERMEABLE, WATERRESISTANT POLYMERIC LAYER.
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) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |