Patent US2671996A successfully refreshed from Google Patents.
US2671996A
Expired / Lapsed
US
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Packaging of materials
Assignee: Colgate Palmolive Co
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Filing: 1949-10-22
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Granted: 1954-03-16
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Expires: 1969-10-22
Abstract
No abstract record available.
Inventors
- 👤 Schneider Frederick William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:13
CPC Classifications
B; B65; B65B; B65B3/00; B65B3/04; B65B3/16; B65D; B65D35/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PROCESS OF PACKAGING PASTRY MATEREIAL IN A COLLAPSIBLE ALUMINUM TUBE CONTAINER, SAID MATERIAL BEING CORROSIVE TO ALUMINUM METAL SURFACES, WHICH COMPRISES THE STEPS OF SUBJECTING AN ANNEALED, COLLAPSIBLE TUBE OF ALUMINUM OF A PURITY OF AT LEAST 99.5% TO THE ACTION OF STEAM FOR A PERIOD OF TIME OF APPROXIMATELY ONE-HALF TO TWO HOURS WHEREBY THE CORROSION RESISTANCE OF THE ALUMINUM METAL SURFACES OF THE TUBE IS SUBSTANTIALLY INCREASED, AND THEN FILLING SAID COLLAPSIBLE ALUMINUM TUBE WITH SAID CORROSIVE PASTY MATERIAL.
Claim 2
Dependent Claim
82 words
A PROCESS OF PACKAGING PASTRY MATEREIAL IN A COLLAPSIBLE ALUMINUM TUBE CONTAINER, SAID MATERIAL BEING CORROSIVE TO ALUMINUM METAL SURFACES, WHICH COMPRISES THE STEPS OF SUBJECTING AN ANNEALED, COLLAPSIBLE TUBE OF ALUMINUM OF A PURITY OF AT LEAST 99.5% TO THE ACTION OF STEAM FOR A PERIOD OF TIME OF APPROXIMATELY ONE-HALF TO TWO HOURS WHEREBY THE CORROSION RESISTANCE OF THE ALUMINUM METAL SURFACES OF THE TUBE IS SUBSTANTIALLY INCREASED, AND THEN FILLING SAID COLLAPSIBLE ALUMINUM TUBE WITH SAID CORROSIVE PASTY MATERIAL.
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) | 1957-03-15 | 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 |