US3277026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making resilient cellular rubber material containing expanded polystyrene granules therein
Assignee: Dunlop Rubber Co Ltd
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Filing: 1962-09-11
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Granted: 1966-10-04
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Expires: 1982-09-11
Abstract
No abstract record available.
Inventors
- 👤 Newnham John Leathem Matthew
- 👤 Simcox Donald James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:43
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/32; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08J9/0061; C08J9/22; C08J9/35; C08G2110/00; C08G2110/0025; C08G2110/0083; C08J2203/00; C08J2203/22; C08J2321/00; C08J2375/00; C08J2375/04; C08J2425/00; Y; Y10; Y10S; Y10S264/00; Y10S264/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A METHOD OF MAKING A COMPOSITE, RESILIENT, CELLULAR UPHOLSTERY MATERIAL WHICH COMPRISES DISPERSING IN A VULCANIZABLE AND GELLABLE COMPOUNDED RUBBER LATEX, GRANULES OF A POLYSTYRENE COMPOSITION WHICH ARE EXPANSIBLE TO A CELLULAR STRUCTURE AT THE TEMPERATURE OF VULCANIZATION OF SAID COMOUNDED RUBBER LATEX, FOAMING SAID LATEX AND HEATING SAID LATEX AND DESPERSED GRANULES TO A TEMPRATURE TO VULCANIZE SAID LATEX AND EXPAND SAID DISPERSED GRANULES TO A CELLULAR STRUCTURE.
Claim 2
Independent Claim
69 words
A METHOD OF MAKING A COMPOSITE, RESILIENT, CELLULAR UPHOLSTERY MATERIAL WHICH COMPRISES DISPERSING IN A VULCANIZABLE AND GELLABLE COMPOUNDED RUBBER LATEX, GRANULES OF A POLYSTYRENE COMPOSITION WHICH ARE EXPANSIBLE TO A CELLULAR STRUCTURE AT THE TEMPERATURE OF VULCANIZATION OF SAID COMOUNDED RUBBER LATEX, FOAMING SAID LATEX AND HEATING SAID LATEX AND DESPERSED GRANULES TO A TEMPRATURE TO VULCANIZE SAID LATEX AND EXPAND SAID DISPERSED GRANULES TO A CELLULAR STRUCTURE.
References Cited (Backward Citations)
US2539931A
Cited
US2892216A
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US2959508A
Cited
GB817981A
Cited
US3094494A
Cited
US2958905A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |