Patent US3741849A successfully refreshed from Google Patents.
US3741849A
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Method of joining tubes to manifold
Assignee: Angelica Corp
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Filing: 1971-02-08
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Granted: 1973-06-26
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Expires: 1991-02-08
Abstract
Abstract APPARATUS AND METHOD FOR JOINING PLASTIC TUBES TO A PLASTIC MANIFOLD UTILIZING HEAT AND PRESSURE AND AN INTERLOCKING MULTI-PART CORE.
Inventors
- 👤 J Hardy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:17
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/13; B29C66/131; B29C66/1312; B29C65/00; B29C65/02; B29C65/04; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5224; B29C66/52241; B29C66/5229; B29C66/52298; B29C66/54; B29C66/543; B29C66/63; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/83; B29C66/832; B29C66/8322; B29C66/83221; F; F16; F16L; F16L41/00; F16L41/02; F16L41/03; F16L47/00; F16L47/26; F16L47/28; B29C66/547; B29C66/5472; B29C66/54721; B29L; B29L2031/00; B29L2031/60; B29L2031/601; B29L2031/602; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002
Claims Analysis
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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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |