Patent US3749272A successfully refreshed from Google Patents.
US3749272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deformable closure for containers
Assignee: Continental Can Co Inc
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Filing: 1972-05-08
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Granted: 1973-07-31
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Expires: 1992-05-08
Abstract
Abstract A deformable closure for containers of the type having an interior lacquered shell and a sealing liner secured therein. The liner has an outer peripheral annular sealing area and an inner central non-sealing area. The lacquer applied to the shell is composed of a composition to which the liner is poorly adherent. The lacquered shell has applied thereto an adhesion promoting coating which contacts the liner in the non-sealing area and renders the liner portion adherent thereto so that the liner is strongly adherent to the shell in the non-sealing area and poorly adherent to the shell in the sealing area.
Inventors
- 👤 H Brockett
- 👤 R Melberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:11
CPC Classifications
B; B65; B65D; B65D53/00; B65D53/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
11 words
The closure of claim 1 made from permanently deformable metal material.
Claim 2
Dependent Claim
15 words
The closure of claim 1 wherein the sealing liner is formed from a plastisol composition.
Claim 3
Dependent Claim
18 words
The closure of claim 1 wherein the adhesion promoting coating is comprised of a plasticized vinyl chloride polymer.
Claim 4
Dependent Claim
22 words
The closure of claim 1 wherein the adhesion promoting coating is applied as a spot to the central portion of the shell.
References Cited (Backward Citations)
US3465907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |