US3814780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for molding foamed polyurethane articles involving the use of multiple pouring devices
Assignee: Goodyear Tire and Rubber Co
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Filing: 1971-07-29
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Granted: 1974-06-04
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Expires: 1991-07-29
Abstract
Abstract This invention relates to an apparatus for pouring polyurethane foamable molded goods wherein at least one pouring head has moved over the molds of one row of one set of molds and then moved over to the second row to permit the second row of molds to be poured in the desired sequence.
Inventors
- 👤 E Woodhall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:49
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/38; B29C44/388; B29K; B29K2075/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |