Patent US3400196A successfully refreshed from Google Patents.
US3400196A
Expired / Lapsed
US
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Method for the permanent compression of a sheet of flexible polyurethane foam
Assignee: Union Carbide Corp
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Filing: 1964-06-30
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Granted: 1968-09-03
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Expires: 1984-06-30
Abstract
No abstract record available.
Inventors
- 👤 Leroy Gene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:05
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/36; C08J9/40; C08J9/42; C08J2375/00; C08J2375/04; C08J2421/00; C08J2423/00; C08J2427/00; C08J2429/00; C08J2433/00; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24512; Y10T428/24802; Y10T428/249921; Y10T428/249953; Y10T428/249962; Y10T428/249964
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA599493A
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US2181859A
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US2442443A
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GB773809A
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US3104192A
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US3050432A
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US2971218A
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US3067804A
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GB911427A
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US3193441A
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US3189669A
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US3196197A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |