Patent US2961342A successfully refreshed from Google Patents.
US2961342A
Expired / Lapsed
US
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Methods of making gas impervious sheet material
Assignee: General Electric Co
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Filing: 1957-08-15
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Granted: 1960-11-22
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Expires: 1977-08-15
Abstract
No abstract record available.
Inventors
- 👤 Russell B Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:54
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/02; B05D7/04; B05D7/50; B05D7/52; B05D7/53; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/052; B05D1/00; B05D1/26; B05D2252/00; B05D2252/10; C08J2301/00; C08J2301/02; C08J2427/00; C08J2427/02; C08J2427/04; C08J2427/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE METHOD OF MAKING COMPOSITE SHEET COMPRISING APPLYING TO ONE SURFACE OF A FLEXIBLE BASE SHEET A UNIFORM FIRST LAYER OF A SOLUTION OF VINYLIDENE CHLORIDE COPOLYMER RESIN IN A VOLATILE SOLVENT, WHICH SOLUTION GELS SUBSTANTALLY IMMEDIATELY UPON APPLICATION, SAID SOLUTION BEING APPLIED IN SAID FIRST LAYER IN AN AMOUNT SUFFICIENT TO PROVIDE A FIRST COATING HAVING A UNIFORM THICKNESS OF THE ORDER OF 0.5 TO 0.75 MIL WHEN DRY, DRYING SAID APPLIED FIRST LAYER, APPLYING TO SAID DRIED FIRST COATING A UNIFORM SECOND LAYER OF SAID SOLUTION TO PROVIDE A SECOND COATING APPLIED SECOND LAYER.
Claim 2
Independent Claim
96 words
THE METHOD OF MAKING COMPOSITE SHEET COMPRISING APPLYING TO ONE SURFACE OF A FLEXIBLE BASE SHEET A UNIFORM FIRST LAYER OF A SOLUTION OF VINYLIDENE CHLORIDE COPOLYMER RESIN IN A VOLATILE SOLVENT, WHICH SOLUTION GELS SUBSTANTALLY IMMEDIATELY UPON APPLICATION, SAID SOLUTION BEING APPLIED IN SAID FIRST LAYER IN AN AMOUNT SUFFICIENT TO PROVIDE A FIRST COATING HAVING A UNIFORM THICKNESS OF THE ORDER OF 0.5 TO 0.75 MIL WHEN DRY, DRYING SAID APPLIED FIRST LAYER, APPLYING TO SAID DRIED FIRST COATING A UNIFORM SECOND LAYER OF SAID SOLUTION TO PROVIDE A SECOND COATING APPLIED SECOND LAYER.
References Cited (Backward Citations)
US1969621A
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US2067015A
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US2386700A
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US2618575A
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US2704732A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |