Patent US2688568A successfully refreshed from Google Patents.
US2688568A
Expired / Lapsed
US
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Process of producing drain-clear containers
Assignee: Pfizer Inc
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Filing: 1950-10-02
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Granted: 1954-09-07
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Expires: 1970-10-02
Abstract
No abstract record available.
Inventors
- 👤 John J Miskel
- 👤 Robert R Umbdenstock
- 👤 Walter E Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:39
CPC Classifications
B; B65; B65D; B65D23/00; B65D23/08; B65D23/0807; B65D23/0814
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A METHOD FOR PREPARING A LIQUIDS DISPENSING CONTAINER WHICH IS CLEAR-DRAINING INTERIORLY AND READILY BE APPLIED, WHICH COMPRISES WETTING THE READILY BE APPLIED, WHICH COMPRISES WETTING THE INTERNAL SURFACES OF THE CONTAINER WITH AN AQUEOUS EMULSION OF A SILICONE OIL, WASHING THE EXTERNAL SURFACES, PRIOR TO DRYING OF THE SILICONE, WITH A DILUTE AQUEOUS SOLUTION OR DISPERSION OF A HIGH MOLECULAR WEIGHT, ORGANIC DETERGENT, WHEREBY CREEPING OF THE SILICONE TO SAID EXTERNAL SURFACES IS EFFECTIVELY PREVENTED, AND THEN DRYING THE CONTAINER.
Claim 2
Independent Claim
81 words
A METHOD FOR PREPARING A LIQUIDS DISPENSING CONTAINER WHICH IS CLEAR-DRAINING INTERIORLY AND READILY BE APPLIED, WHICH COMPRISES WETTING THE READILY BE APPLIED, WHICH COMPRISES WETTING THE INTERNAL SURFACES OF THE CONTAINER WITH AN AQUEOUS EMULSION OF A SILICONE OIL, WASHING THE EXTERNAL SURFACES, PRIOR TO DRYING OF THE SILICONE, WITH A DILUTE AQUEOUS SOLUTION OR DISPERSION OF A HIGH MOLECULAR WEIGHT, ORGANIC DETERGENT, WHEREBY CREEPING OF THE SILICONE TO SAID EXTERNAL SURFACES IS EFFECTIVELY PREVENTED, AND THEN DRYING THE CONTAINER.
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) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |