US3526556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for the continuous production of slabs or sheets composed of foamed polymeric material having a cellular core
Assignee: Berner Industries Inc
•
Filing: 1966-12-06
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Granted: 1970-09-01
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Expires: 1986-12-06
Abstract
No abstract record available.
Inventors
- 👤 Erling Berner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:36
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/20; B31F1/24; B31F1/26; B31F1/28; B31F1/2886; B29; B29C; B29C44/00; B29C44/20; B29C44/206; B29C44/32; B29C44/332; B31D; B31D3/00; B31D3/005; B32; B32B; B32B3/00; B32B3/10; B32B3/12; E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/20; E04C2/205; B29K; B29K2105/00; B29K2105/04; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1016; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24157
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2475789A
Cited
US2759523A
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US2973295A
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US3010508A
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US3180778A
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US3262834A
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US3264153A
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US3274668A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |