Patent US4017737A successfully refreshed from Google Patents.
Patent US3222191A successfully refreshed from Google Patents.
US3222191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel packaging film and processes therefor
Assignee: Millennium Petrochemicals Inc
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Filing: 1961-11-07
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Granted: 1965-12-07
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Expires: 1981-11-07
Abstract
No abstract record available.
Inventors
- 👤 Robert H Steiner
- 👤 Theodore B Simpson
- 👤 John E Hammond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:23
CPC Classifications
B; B29; B29C; B29C48/00; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/048; C08J7/054; B29C48/03; B29C48/07; B29C48/08; C08J2323/00; C08J2323/02; C08J2401/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
133 words
A POLYOLEFIN FILM HAVING AN ANIT-FOGGING COATING ON ONE SURFACE THEREOF, SAID ANTI-FOGGING COATING BEING SELECTED FROM THE GROUP CONSISTING OF (1) AT LEAST ONE WATER-SOLUBLE CELLULOSE ETHER AND A WATER-SOLUBLE INORGANIC SALT AND (2) AT ELAST ONE WETTING AGENT, AT LEAST ONE WATER-SOLUBLE FILM-FORMING AGENT, AND AT LEAST ONE WATERSOLUBLE INORGANIC SALT, SAID FILM HAVING BEEN PREPARED BY EXTRUDING AT REALTIVELY HIGH SPEEDS A POLYOLEFIN RESIN OF NOT MORE THAN 0.923 DENSITY AT A TEMPERATURE BETWEEN ABOUT 550* AND 700*F., A PRESSURE BETWEEN ABOUT 1,000 AND 10,000 POUNDS PER SQUARE INCH, AND A SPEED OF AT LEAST 100 FEET PER MINUTE, AND SAID COATING BEING CAPABLE OF DISPERSING MOISTURE CONDENSED THEREON IN THE FORM OF A THIN, TRANSPARENT FILM, THEREBY PREVENTING THE FOGGING OF SAID FILM UPON EXPOSURE TO CHANGES IN TEMPERATURE.
Claim 2
Dependent Claim
133 words
A POLYOLEFIN FILM HAVING AN ANIT-FOGGING COATING ON ONE SURFACE THEREOF, SAID ANTI-FOGGING COATING BEING SELECTED FROM THE GROUP CONSISTING OF (1) AT LEAST ONE WATER-SOLUBLE CELLULOSE ETHER AND A WATER-SOLUBLE INORGANIC SALT AND (2) AT ELAST ONE WETTING AGENT, AT LEAST ONE WATER-SOLUBLE FILM-FORMING AGENT, AND AT LEAST ONE WATERSOLUBLE INORGANIC SALT, SAID FILM HAVING BEEN PREPARED BY EXTRUDING AT REALTIVELY HIGH SPEEDS A POLYOLEFIN RESIN OF NOT MORE THAN 0.923 DENSITY AT A TEMPERATURE BETWEEN ABOUT 550* AND 700*F., A PRESSURE BETWEEN ABOUT 1,000 AND 10,000 POUNDS PER SQUARE INCH, AND A SPEED OF AT LEAST 100 FEET PER MINUTE, AND SAID COATING BEING CAPABLE OF DISPERSING MOISTURE CONDENSED THEREON IN THE FORM OF A THIN, TRANSPARENT FILM, THEREBY PREVENTING THE FOGGING OF SAID FILM UPON EXPOSURE TO CHANGES IN TEMPERATURE.
Claim 3
Dependent Claim
105 words
AS AN ARTICLE OF MANUFACTURE, FRESHLY CUT RED MEAD ENCASED IN A STRONG, TRANSPARENT POLYOLEFIN FILM, THE INNER SURFACE FO WHICH IS COATED WITH AN ANTI-FOGGING COMPOSITION SELECTED FROM THE GROUP CONSISTING OF (1) AT LEAST ONE WATER-SOLUBLE CELLULOSE ETHER AND A WATER-SOLUBLE INORGANIC SALT AND (2) AT LEST ONE WETTING AGENT, AT LEAST ONE WATER-SOLUBLE FILM-FORMING AGENT, AND AT LEAST ONE WATER-SOLUBLE INORGANIC SALT, SAID SUBSTRATE FILM HAVING BEEN PREPARED BY EXTRUDING A POLYOLEFIN RESIN AT A TEMPERATURE BETWEEN ABOUT 550* AND 700*F., A PRESSURE BETWEEN ABOUT 1,000 AND 10,000 POUNDS PER SQUARE INCH, AND A SPEED OF AT LEAST 100 FEET PER MINUTE.
Claim 4
Dependent Claim
105 words
AS AN ARTICLE OF MANUFACTURE, FRESHLY CUT RED MEAD ENCASED IN A STRONG, TRANSPARENT POLYOLEFIN FILM, THE INNER SURFACE FO WHICH IS COATED WITH AN ANTI-FOGGING COMPOSITION SELECTED FROM THE GROUP CONSISTING OF (1) AT LEAST ONE WATER-SOLUBLE CELLULOSE ETHER AND A WATER-SOLUBLE INORGANIC SALT AND (2) AT LEST ONE WETTING AGENT, AT LEAST ONE WATER-SOLUBLE FILM-FORMING AGENT, AND AT LEAST ONE WATER-SOLUBLE INORGANIC SALT, SAID SUBSTRATE FILM HAVING BEEN PREPARED BY EXTRUDING A POLYOLEFIN RESIN AT A TEMPERATURE BETWEEN ABOUT 550* AND 700*F., A PRESSURE BETWEEN ABOUT 1,000 AND 10,000 POUNDS PER SQUARE INCH, AND A SPEED OF AT LEAST 100 FEET PER MINUTE.
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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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |