Patent US3398104A successfully refreshed from Google Patents.
US3398104A
Expired / Lapsed
US
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Polyurethane foam preparation using siloxane glycol branch copolymers
Assignee: Dow Silicones Corp
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Filing: 1965-07-16
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Granted: 1968-08-20
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Expires: 1985-07-16
Abstract
No abstract record available.
Inventors
- 👤 Loren A Haluska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:38
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; C08G; C08G77/00; C08G77/42; C08G77/46; C08J2375/00; C08J2375/04; C08J2375/06; C08J2483/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2839558A
Cited
US2834748A
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US2846458A
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US3194773A
Cited
US3057901A
Cited
US3272762A
Cited
GB1015611A
Cited
GB955916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |