Patent US3412185A successfully refreshed from Google Patents.
US3412185A
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Method for expanding discreet articles of foamable polymeric material
Assignee: Huntsman Chemical Corp
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Filing: 1964-12-14
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Granted: 1968-11-19
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Expires: 1984-12-14
Abstract
No abstract record available.
Inventors
- 👤 Charles Kienzle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:47
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/22; C08J9/224
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2287270A
Cited
US3033806A
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US3086885A
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US3066382A
Cited
US3026274A
Cited
US3300437A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |