US4777855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating pillow presenting portions of different firmness
Assignee: Foamex LP
•
Filing: 1987-12-21
•
Granted: 1988-10-18
•
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 06:32
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.
References Cited (Backward Citations)
US2880428A
Cited
US2933738A
Cited
US2898975A
Cited
US3148389A
Cited
US3242511A
Cited
US3924283A
Cited
FR2305956A1
Cited
US3987507A
Cited
US4118813A
Cited
US4233700A
Cited
USD261681S
Cited
US4259757A
Cited
EP0037390A2
Cited
US4320543A
Cited
US4574411A
Cited
US4501034A
Cited
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 |