US3506533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous products of foamed polymeric materials and method of producing same
Assignee: Berner Industries Inc
•
Filing: 1965-10-21
•
Granted: 1970-04-14
•
Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Erling Berner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:45
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/8227; B; B29; B29C; B29C44/00; B29C44/34; B29C44/56; B29C44/569; B32; B32B; B32B27/00; E04B2001/8245; E04B1/84; E04B2001/8414; E04B2001/8457; E04B2001/8461; E04B2001/8476; E04B2001/848; E04B2001/849; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T428/24479; Y10T428/24496; Y10T428/2457; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/24999
Claims Analysis
Total Claims: 0
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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) | 1973-04-13 | 1973-10-13 | 1974-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-13 | 1977-10-13 | 1978-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-13 | 1981-10-13 | 1982-04-14 | $7700.00 | Window Closed / Lapsed |