Patent US2933768A successfully refreshed from Google Patents.
US2933768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved oil and heat resistant elastomer foamed products and their manufacture
Assignee: Toyad Corp
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Filing: 1955-11-04
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Granted: 1960-04-26
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Expires: 1975-11-04
Abstract
No abstract record available.
Inventors
- 👤 Harold B Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:43
CPC Classifications
B; B29; B29C; B29C44/00; Y; Y10; Y10S; Y10S521/00; Y10S521/918; Y10T; Y10T428/00; Y10T428/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
THE METHOD OF PREPARING ELASTOMER FOAM AND SPONGE OIL RESERVOIRS, WICKS AND THE LIKE, COMPRISING THE STEPS OF FOAMING AN OIL RESISTANT ELASTOMER IN FLUID FORM, CASTING THE FOAMED ELASTOMER IN A MOLD, VULCANIZING THE CAST FOAMED ELASTOMER, WASHING THE VULCANIZED CASTING, REDUCING THE MOISTURE CONTENT OF THE CASTING TO A LOW PERCENTAGE, WET BRAKING THE WASHED CASTING IN A NONOXIDIZING ATMOSPHERE IN THE PRESENCE OF NOT LESS THAN ABOUT 10 PERCENT MOISTURE AT A TEMPERATURE SUBSTANTIALLY EQUAL TO THE TEMPERATURE TO BE ENCOUNTERED IN USE, AND DRYING.
Claim 2
Independent Claim
88 words
THE METHOD OF PREPARING ELASTOMER FOAM AND SPONGE OIL RESERVOIRS, WICKS AND THE LIKE, COMPRISING THE STEPS OF FOAMING AN OIL RESISTANT ELASTOMER IN FLUID FORM, CASTING THE FOAMED ELASTOMER IN A MOLD, VULCANIZING THE CAST FOAMED ELASTOMER, WASHING THE VULCANIZED CASTING, REDUCING THE MOISTURE CONTENT OF THE CASTING TO A LOW PERCENTAGE, WET BRAKING THE WASHED CASTING IN A NONOXIDIZING ATMOSPHERE IN THE PRESENCE OF NOT LESS THAN ABOUT 10 PERCENT MOISTURE AT A TEMPERATURE SUBSTANTIALLY EQUAL TO THE TEMPERATURE TO BE ENCOUNTERED IN USE, AND DRYING.
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) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |