Patent US3210447A successfully refreshed from Google Patents.
US3210447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making patterned foam padding material
Assignee: Allen Industries Inc
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Filing: 1963-07-08
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Granted: 1965-10-05
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Expires: 1983-07-08
Abstract
No abstract record available.
Inventors
- 👤 Eddie J Cyr
- 👤 Edward G Goldstone
- 👤 Stanley J Wszolek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:26
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/20; B29C44/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A METHOD OF MAKING A COMPOSITE PATTERNED LATEX FOAM SHEET MATERIAL WHICH COMPRISES THE STEPS OF APPLYING A SUBSTANTIALLY UNIFORM UNGELLED LATEX FOAM LAYER OF A CONTROLLED THICKNESS ON ONE SURFACE OF A BACKING SHEET, HEATING SAID FOAM LAYER AND CONTROLLING THE TEMPERATURE AND DURATION THEREOF TO EFFECT AT LEAST PARIAL GELLATION OF SAID FOAM LAYER IN A STRATUM OF A CONTROLLED THICKNESS ADJACENT TO SAID SHEET WHILE RETAINING A SUBSTANTIALLY UNGELLED MOLDABLE STRATUM THEREABOVE, ADVANCING SAID SHEET WITH SAID FOAM LAYER THEREON INTO CONTACT WITH A DIE HAVING A PATTERNED PERIPHERAL SURFACE AND MOLDING THE UNGELLED SAID STRATUM TO CONFORM WITH THE PATTERN THEREON, GELLING SAID FOAM LAYER WHILE IN CONTACT WITH SAID DIE, STRIPPING SAID SHEET FROM SAID DIE AND THEREAFTER CURING SAID LATEX FOAM LAYER FORMING A COMPOSITE PATTERNED SHEET MATERIAL.
Claim 2
Independent Claim
134 words
A METHOD OF MAKING A COMPOSITE PATTERNED LATEX FOAM SHEET MATERIAL WHICH COMPRISES THE STEPS OF APPLYING A SUBSTANTIALLY UNIFORM UNGELLED LATEX FOAM LAYER OF A CONTROLLED THICKNESS ON ONE SURFACE OF A BACKING SHEET, HEATING SAID FOAM LAYER AND CONTROLLING THE TEMPERATURE AND DURATION THEREOF TO EFFECT AT LEAST PARIAL GELLATION OF SAID FOAM LAYER IN A STRATUM OF A CONTROLLED THICKNESS ADJACENT TO SAID SHEET WHILE RETAINING A SUBSTANTIALLY UNGELLED MOLDABLE STRATUM THEREABOVE, ADVANCING SAID SHEET WITH SAID FOAM LAYER THEREON INTO CONTACT WITH A DIE HAVING A PATTERNED PERIPHERAL SURFACE AND MOLDING THE UNGELLED SAID STRATUM TO CONFORM WITH THE PATTERN THEREON, GELLING SAID FOAM LAYER WHILE IN CONTACT WITH SAID DIE, STRIPPING SAID SHEET FROM SAID DIE AND THEREAFTER CURING SAID LATEX FOAM LAYER FORMING A COMPOSITE PATTERNED SHEET MATERIAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |