US2671997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating collapsible aluminum tube containers
Assignee: Colgate Palmolive Co
•
Filing: 1949-11-05
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Granted: 1954-03-16
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Expires: 1969-11-05
Abstract
No abstract record available.
Inventors
- 👤 Egan William Thomas
- 👤 Mcghie Russell Park
- 👤 Schneider Frederick William
- 👤 Sweet Warren William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:17
CPC Classifications
B; B65; B65D; B65D35/00; B65B; B65B3/00; B65B3/04; B65B3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS OF PACKAGING PASTY MATERIAL OF A COLLAPSIBLE ALUMINUM TUBE CONTAINER, WHICH MATERIAL IS CORROSIVE TO ALUMINUM METAL SURFACES, COMPRISING THE STEPS OF WETTING THE SURFACES, ALL OF WHICH ARE FREE FROM AN ARTIFICALLY DEPOSITED COATING OF ALUMINUM OXIDE, OF A COLLAPSIBLE TUBE OF ALUMINUM OF A PURITY OF AT LEAST 99.5% WITH WATER, THEREAFTER SUBJECTING THE TUBE WHILE THUS WET WITH WATER TO AN ANNEALING TEMPERATURE BETWEEN ABOUT 250* F. AND 1200* F. FOR A PERIOD OF TIME SUFFICIENT TO PROVIDE A TUBE WHICH IS READILY FLEXED AND WHICH HAS INCREASED RESISTANCE TO CORROSION, AND THEN FILLING SAID COLLAPSIBLE ALUMINUM TUBE WITH SAID CORROSIVE PASTY MATERIAL.
Claim 2
Dependent Claim
108 words
A PROCESS OF PACKAGING PASTY MATERIAL OF A COLLAPSIBLE ALUMINUM TUBE CONTAINER, WHICH MATERIAL IS CORROSIVE TO ALUMINUM METAL SURFACES, COMPRISING THE STEPS OF WETTING THE SURFACES, ALL OF WHICH ARE FREE FROM AN ARTIFICALLY DEPOSITED COATING OF ALUMINUM OXIDE, OF A COLLAPSIBLE TUBE OF ALUMINUM OF A PURITY OF AT LEAST 99.5% WITH WATER, THEREAFTER SUBJECTING THE TUBE WHILE THUS WET WITH WATER TO AN ANNEALING TEMPERATURE BETWEEN ABOUT 250* F. AND 1200* F. FOR A PERIOD OF TIME SUFFICIENT TO PROVIDE A TUBE WHICH IS READILY FLEXED AND WHICH HAS INCREASED RESISTANCE TO CORROSION, AND THEN FILLING SAID COLLAPSIBLE ALUMINUM TUBE WITH SAID CORROSIVE PASTY MATERIAL.
References Cited (Backward Citations)
US1912175A
Cited
US1891549A
Cited
US1996379A
Cited
US2104222A
Cited
US2086993A
Cited
US2091419A
Cited
US2092034A
Cited
US2279252A
Cited
FR872562A
Cited
US2403426A
Cited
US2506364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |