US3557264A
Expired / Lapsed
US
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Load supporting structures
Assignee: Eaton Corp
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Filing: 1967-09-21
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Granted: 1971-01-19
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Expires: 1987-09-21
Abstract
Abstract THIS INVENTION RELATES TO A METHOD OF MOLDING A FOAM CUSHION BY PLACING A FRAME PARALLEL TO A SPACED FROM THE BOTTOM AND TOP OF A CLOSED MOLD AND PLACING A PREFORMED PAD BETWEEN THE TOP SURFACE OF THE CLOSED MOLD AND A LOAD TRANSFER MEANS OF THE FRAME AND INTRODUCING A POLYURETHANE FOAM WITHIN THE MOLD BELOW THE PREFORMED PAD AND THEREAFTER ALLOWING SAID POLYURETHANE TO EXPAND AND FILL SAID MOLD AND SUBSEQUENTLY CURING SAID POLYURETHANE.
Inventors
- 👤 Edward T Getz
- 👤 Matthew Pacak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:45
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/04; A; A47; A47C; A47C5/00; A47C5/12; A47C5/125; A47C7/00; A47C7/02; A47C7/024; A47C7/18; A47C7/20; A47C7/28; A47C7/282; A47C7/36; A47C7/40; A47C7/405; B29C44/12; B29C44/1266; B60; B60N; B60N2/00; B60N2/68; B60N2/686; B60N2/70; B60N2/7017; B60N2/7023; B60N2/7035; B60N2/7047; B60N2/707; B29C33/00; B29C33/12; B29C33/123; B29L; B29L2031/00; B29L2031/58; B29L2031/771
Claims Analysis
Total Claims: 0
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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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |