US3535408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery and utilization of scrap in production of foamed vinyl aromatic polymeric products
Assignee: Cupples Container Co
•
Filing: 1968-04-04
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Granted: 1970-10-20
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Expires: 1988-04-04
Abstract
No abstract record available.
Inventors
- 👤 Clifford P Ronden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:29
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; B; B29; B29B; B29B17/00; B29B17/0005; B29B17/04; B29B17/0404; B29B17/0412; B29K; B29K2025/00; B29K2105/00; B29K2105/04; C08J2300/00; C08J2300/30; C08J2325/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA623804A
Cited
US3344212A
Cited
US2838801A
Cited
US3224984A
Cited
US3293196A
Cited
US3192293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |