Patent US4777855A successfully refreshed from Google Patents.
US4777855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating pillow presenting portions of different firmness
Assignee: Foamex LP
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Filing: 1987-12-21
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Granted: 1988-10-18
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Expires: 2007-12-21
Abstract
Abstract A composite plastic foam pillow has a convoluted upper surface, a flat lower surface and a core disposed between those surfaces which is provided with a central void for imparting decreased firmness to the pillow adjacent the void. It is fabricated by coring a block of plastic foam, cutting out a central portion of the core, and then replacing the core and sealing it in its original position.
Inventors
- 👤 Arnold Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:20
CPC Classifications
A; A47; A47G; A47G9/00; A47G9/10; B; B29; B29C; B29C44/00; B29C44/34; B29C44/56; A47G2009/1018; Y; Y10; Y10T; Y10T83/00; Y10T83/02; Y10T83/0207; Y10T83/0267; Y10T83/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A method of fabricating from a block of plastic foam , a pillow having areas of different compressibility over its surface including the steps of making a transverse incision across one surface of said block, making longitudinal cuts beginning at the bottom of said incision defining a core of said block, separating said core from said block, excising a portion of said core centrally thereof, and replacing said core in the position from which it was removed.
Claim 2
Independent Claim
77 words
A method of fabricating from a block of plastic foam , a pillow having areas of different compressibility over its surface including the steps of making a transverse incision across one surface of said block, making longitudinal cuts beginning at the bottom of said incision defining a core of said block, separating said core from said block, excising a portion of said core centrally thereof, and replacing said core in the position from which it was removed.
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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) | 1991-10-18 | 1992-04-18 | 1992-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-18 | 1996-04-18 | 1996-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-18 | 2000-04-18 | 2000-10-18 | $7700.00 | Window Closed / Lapsed |