US2833732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing siloxane resin foams
Assignee: Dow Silicones Corp
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Filing: 1954-08-25
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Granted: 1958-05-06
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Expires: 1974-08-25
Abstract
No abstract record available.
Inventors
- 👤 Donald E Weyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:51
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/02; C08J9/04; C08J9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A METHOD OF PREPARING A FOAM WHICH COMPRISES HEATING A MIXTURE OF (1) AN ORGANIC RESIN, (2) FROM .05 TO 50% BY WEIGHT BASED ON THE WEIG HT OF THE RESIN OF AN ORGANOSILOXANE IN WHICH AT LEAST A MAJOR PORTION OF THE SILOXANE UNITS ARE OF THE FORMULA
Claim 2
Independent Claim
49 words
A METHOD OF PREPARING A FOAM WHICH COMPRISES HEATING A MIXTURE OF (1) AN ORGANIC RESIN, (2) FROM .05 TO 50% BY WEIGHT BASED ON THE WEIG HT OF THE RESIN OF AN ORGANOSILOXANE IN WHICH AT LEAST A MAJOR PORTION OF THE SILOXANE UNITS ARE OF THE FORMULA
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) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |