US3819085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lap side seam of metal, tubular body and method for making same
Assignee: Primerica Inc
•
Filing: 1972-03-28
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Granted: 1974-06-25
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Expires: 1992-03-28
Abstract
Abstract An adhesively bonded, lap side seam of a primed metal, tubular body having a raw metal edge on the inside lap is provided with a protective thermoplastic resin coating on the raw metal edge of the inside lap and a thermoplastic adhesive wrapped around the resin coating and the interior and exterior surfaces of the inside lap.
Inventors
- 👤 S Rohowetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:46
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/70; B29C66/72; B29C66/723; B21; B21D; B21D51/00; B21D51/16; B21D51/26; B21D51/2676; B29C65/00; B29C65/48; B29C65/4805; B29C65/481; B29C65/4815; B29C65/50; B29C65/5064; B29C65/5071; B29C65/5085; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/7232; B29C66/72321; B65; B65D; B65D7/00; B65D7/12; B65D7/34; B65D7/38; B29C53/00; B29C53/36; B29C53/38; B29C66/71; B29L; B29L2009/00; B29L2009/003; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1036; Y10T156/1038; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885; Y10T428/00; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
61 words
In an adhesively bonded, lap side seam of a primed metal, tubular body having a raw metal edge on the inside lap, the improvement which comprises: a protective, thermoplastic polyamide resin coating on the raw metal edge of the inside lap; and a thermoplastic nylon adhesive wrapped around the resin coating and the interior and exterior surfaces of the inside lap.
Claim 2
Dependent Claim
61 words
In an adhesively bonded, lap side seam of a primed metal, tubular body having a raw metal edge on the inside lap, the improvement which comprises: a protective, thermoplastic polyamide resin coating on the raw metal edge of the inside lap; and a thermoplastic nylon adhesive wrapped around the resin coating and the interior and exterior surfaces of the inside lap.
Claim 3
Dependent Claim
21 words
The article of claim 1 wherein the protective thermoplastic resin is applied to the raw metal edge as a hot melt.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-24 | 1977-12-24 | 1978-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-24 | 1981-12-24 | 1982-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-24 | 1985-12-24 | 1986-06-25 | $7700.00 | Window Closed / Lapsed |