US3052569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for coating milk containers
Assignee: Sunoco Inc
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Filing: 1960-01-18
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Granted: 1962-09-04
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Expires: 1980-01-18
Abstract
No abstract record available.
Inventors
- 👤 Francis J Mcnamara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:07
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN A PROCESS FOR APPLYING A PROTECTIVE COATING OF A PETROLEUM WAX TO CONTAINERS FOR LIQUIDS, SAID PROCESS COMPRISING COATING SAID CONTAINERS WITH A MOLTEN PETROLEUM WAX COATING COMPOSITION COMPRISING MAINLY PARAFFIN WAX, AND COOLING THE COATED CONTAINERS TO SOLIDIFY AND HARDEN THE COATING, THE IMPROVEMENTS WHICH COMPRISES APPLYING TO AN INTERIOR SURFACE OF THE COATED CONTAINER, AFTER COATING AND BEFORE APPRECIABLE HARDENING OF THE COATING COMPOSITION A SMALL AMOUNT, SUFFICIENT TO SUBSTANTIALLY SUPPRESS CRACKING AND FLAKING OF THE COATING UPON CONTACT WITH REFRIGERATED LIQUIDS, OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF A PHARMACEUTICAL WHITE OIL AND A MOLTEN PETROLATUM WAX.
Claim 2
Dependent Claim
103 words
IN A PROCESS FOR APPLYING A PROTECTIVE COATING OF A PETROLEUM WAX TO CONTAINERS FOR LIQUIDS, SAID PROCESS COMPRISING COATING SAID CONTAINERS WITH A MOLTEN PETROLEUM WAX COATING COMPOSITION COMPRISING MAINLY PARAFFIN WAX, AND COOLING THE COATED CONTAINERS TO SOLIDIFY AND HARDEN THE COATING, THE IMPROVEMENTS WHICH COMPRISES APPLYING TO AN INTERIOR SURFACE OF THE COATED CONTAINER, AFTER COATING AND BEFORE APPRECIABLE HARDENING OF THE COATING COMPOSITION A SMALL AMOUNT, SUFFICIENT TO SUBSTANTIALLY SUPPRESS CRACKING AND FLAKING OF THE COATING UPON CONTACT WITH REFRIGERATED LIQUIDS, OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF A PHARMACEUTICAL WHITE OIL AND A MOLTEN PETROLATUM WAX.
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) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |