US3464872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient materials
Assignee: Texfoam International Ltd
•
Filing: 1968-04-04
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Granted: 1969-09-02
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Expires: 1988-04-04
Abstract
No abstract record available.
Inventors
- 👤 Lilian F Everett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:10
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/36; C08J9/40; C08J9/42; A; A47; A47C; A47C7/00; A47C7/02; A47C7/18; B; B29; B29C; B29C44/00; B29C44/02; B29C44/04; B29C44/10; B29C44/12; B29C44/1209; B29C44/34; B29C44/3403; B29C44/58; B29C44/588; C08J9/35; B29C33/00; B29C33/0038; C08J2375/00; C08J2375/04; C08J2421/00; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/24996; Y10T428/31504; Y10T428/31551; Y10T428/31569
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A METHOD OF MAKING A RESILIENT BODY OF AN OPEN CELLULAR MATERIAL OF GIVEN SHAPE AND DIMENSION WHICH COMPRISES THE STEPS OF PROVIDING AN OPEN CELLULAR, SET, RESILIENT, POLYURETHANE FOAM BODY OF THE SAME SHAPE AND DIMENSIONS AS THE RESILIENT BODY TO BE MADE, EXTENDING AND EXPANDING A FOAMABLE RUBBER LATEX LIQUID COMPOSITION THROUGH THE INTERSTICES OF SAID POLYURETHANE FOAM BODY UNTIL THE RUBBER LATEX FOAM EXTENDS CONTINUOUSLY THROUGHOUT THE ENTIRE SAID POLYURETHANE FOAM BODY SO AS TO BE COEXTEENSIVE THEREWITH AND CONJOINTLY OCCUPY THEREWITH A SPACE IN COMMON, SETTING SAID RUBBER LATEX FOAM BY GELLING AND VULCANIZING SAID SET RUBBER LATEX FOAM.
Claim 2
Independent Claim
103 words
A METHOD OF MAKING A RESILIENT BODY OF AN OPEN CELLULAR MATERIAL OF GIVEN SHAPE AND DIMENSION WHICH COMPRISES THE STEPS OF PROVIDING AN OPEN CELLULAR, SET, RESILIENT, POLYURETHANE FOAM BODY OF THE SAME SHAPE AND DIMENSIONS AS THE RESILIENT BODY TO BE MADE, EXTENDING AND EXPANDING A FOAMABLE RUBBER LATEX LIQUID COMPOSITION THROUGH THE INTERSTICES OF SAID POLYURETHANE FOAM BODY UNTIL THE RUBBER LATEX FOAM EXTENDS CONTINUOUSLY THROUGHOUT THE ENTIRE SAID POLYURETHANE FOAM BODY SO AS TO BE COEXTEENSIVE THEREWITH AND CONJOINTLY OCCUPY THEREWITH A SPACE IN COMMON, SETTING SAID RUBBER LATEX FOAM BY GELLING AND VULCANIZING SAID SET RUBBER LATEX FOAM.
References Cited (Backward Citations)
GB748990A
Cited
US2927876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |