Patent US3423339A successfully refreshed from Google Patents.
US3423339A
Expired / Lapsed
US
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Polyurethane foams utilizing an oxyethylated tall oil foam stabilizer
Assignee: Olin Corp
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Filing: 1966-07-29
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Granted: 1969-01-21
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Expires: 1986-07-29
Abstract
No abstract record available.
Inventors
- 👤 William R Andrews
- 👤 John L Meehan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:48
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/4804; C08G18/4891; C08J2375/00; C08J2375/04; C08J2375/08; C08J2471/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3002937A
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US2950262A
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US3072582A
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GB874766A
Cited
GB865616A
Cited
US3003977A
Cited
GB892776A
Cited
US3095386A
Cited
US3248348A
Cited
US3248349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |