US3018212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic bonding and coating
Assignee: Union Carbide Corp
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Filing: 1958-07-17
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Granted: 1962-01-23
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Expires: 1978-07-17
Abstract
No abstract record available.
Inventors
- 👤 Hyman G Chinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:14
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C65/00; B29C65/02; B29C65/40; B29C65/48; B29C65/4805; B29C65/481; B29C65/4815; B29C65/52; B29C65/524; B29C65/78; B29C65/7858; B29C65/7888; B29C65/7894; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/4329; B29C66/49; B29C66/70; B29C66/72; B29C66/723; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/7232; B29C66/72321; B29C66/72327; B29C66/72328; B29C66/7234
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
A METHOD OF FORMING SPIRAL WOUND CONTAINERS COMPRISING THE STEPS OF PLACING ON ONE EDGE MARGIN OF A SHEET MATERIAL WEB A BEAD OF THERMOPLASTIC MELT, FLATTENING THE BEAD CAUSING A PORTION TO EXTEND OUTWARDLY FROM SAID EDGE MARGIN AS A SKIRT, WRAPPING THE SKIRTED WEB AROUND A MANDREL, PLACING THE EDGES OF SUCCESSIVE TURNS OF SAID WEB IN ABUTTING RELATION, AND PLACING A BEAD OF ADHESIVE BETWEEN THE SKIRT AND THE ADJACENT EDGE MARGIN
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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) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |