Patent US3216559A successfully refreshed from Google Patents.
US3216559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion resistant lining
Assignee: PPG Industries Inc
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Filing: 1964-10-19
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Granted: 1965-11-09
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Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 Forbes Sydney
- 👤 Paul J Gegner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:23
CPC Classifications
B; B65; B65D; B65D25/00; B65D25/14; B65D85/00; B65D85/70; B65D85/84
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
AN ALKALI CHLORINE CELL HAVING A CORROSION RESISTANT SURFACE COMPRISING AN INNER LAYER OF ORGANIC SEALANT AFFIXED TO A SURFACE TO BE PROTECTED, A LAYER OF POROUS INERT MATERIAL, SELECTED FROM THE GROUP CONSISTING OF CROCIDOLITE ASBESTOS FIBERS, SYNTHETIC POLYESTER FIBERS OF METHYL TEREPHTHALATE AND ETHYLENE GLYCOL, AND FIBERS OF A COPOLYMER OF VINYL CHLORIDE AND ACRYLONITRILE, ADHERED TO THE ORGANIC SEALANT, AN OUTER LAYER OF ORGANIC SEALANT AFFIXED TO THE POROUS INERT MATERIAL, AND WHEREIN SAID OUTER LAYER OF ORGANIC SEALANT IS CHLORINATED AT LEAST UPON ITS FACE.
Claim 2
Dependent Claim
89 words
AN ALKALI CHLORINE CELL HAVING A CORROSION RESISTANT SURFACE COMPRISING AN INNER LAYER OF ORGANIC SEALANT AFFIXED TO A SURFACE TO BE PROTECTED, A LAYER OF POROUS INERT MATERIAL, SELECTED FROM THE GROUP CONSISTING OF CROCIDOLITE ASBESTOS FIBERS, SYNTHETIC POLYESTER FIBERS OF METHYL TEREPHTHALATE AND ETHYLENE GLYCOL, AND FIBERS OF A COPOLYMER OF VINYL CHLORIDE AND ACRYLONITRILE, ADHERED TO THE ORGANIC SEALANT, AN OUTER LAYER OF ORGANIC SEALANT AFFIXED TO THE POROUS INERT MATERIAL, AND WHEREIN SAID OUTER LAYER OF ORGANIC SEALANT IS CHLORINATED AT LEAST UPON ITS FACE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |