US2859190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax-resin emulsion for water vapor proofing paper and method of producing same
Assignee: Patent and Licensing Corp
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Filing: 1953-08-26
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Granted: 1958-11-04
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Expires: 1973-08-26
Abstract
No abstract record available.
Inventors
- 👤 Richard H Cubberley
- 👤 Dell M Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:17
CPC Classifications
D; D21; D21J; D21J1/00; D21J1/08; C; C09; C09K; C09K23/00; C09K23/017; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/38; D21H17/39; D21H17/60; D21H19/00; D21H19/10; D21H19/14; D21H19/18; D21H19/36; D21H19/38; D21H19/40; D21H19/44; D21H19/56; D21H19/58; D21J1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
AN EMULSION SUITABLE FOR WATER VAPOUR PROOFING PAPER COMPRISING WATER, MICROCRYSTALLINE WAX, A SOLID PLOYMER SELECTED FROM THE GROUP CONSISTING OF POLYISOBUTENE POLYETHLENE AND MIXTURES THEREOF AND A COPOLYMER OF ISOBUTENE AND ISOPRENE, THE WEIGHT OF SAID WAX EXCEEDING THE WEIGHT OF SAID POLYMER, A CLAY SELECTED FROM THE GROUP CONSISTING OF KAOLIN AND BALL CLAY AS AN EMULSIFYING AGENT, AND A CATIONIC SURFACE ACTIVE AGENT AS A PROMOTOR FOR SAID CLAY, WHEREIN THE RATIO OF COMBINED WAX AND POLYMER IS 3 TO 10 PARTS PER PART OF CLAY.
Claim 2
Dependent Claim
89 words
AN EMULSION SUITABLE FOR WATER VAPOUR PROOFING PAPER COMPRISING WATER, MICROCRYSTALLINE WAX, A SOLID PLOYMER SELECTED FROM THE GROUP CONSISTING OF POLYISOBUTENE POLYETHLENE AND MIXTURES THEREOF AND A COPOLYMER OF ISOBUTENE AND ISOPRENE, THE WEIGHT OF SAID WAX EXCEEDING THE WEIGHT OF SAID POLYMER, A CLAY SELECTED FROM THE GROUP CONSISTING OF KAOLIN AND BALL CLAY AS AN EMULSIFYING AGENT, AND A CATIONIC SURFACE ACTIVE AGENT AS A PROMOTOR FOR SAID CLAY, WHEREIN THE RATIO OF COMBINED WAX AND POLYMER IS 3 TO 10 PARTS PER PART OF CLAY.
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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |