US3389196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making an insulated core building panel
Assignee: Stahl Industries Inc
•
Filing: 1964-07-24
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Granted: 1968-06-18
•
Expires: 1984-07-24
Abstract
No abstract record available.
Inventors
- 👤 Joel S Stahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:51
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/14; B29C44/146; B32; B32B; B32B27/00; B29C33/00; B29C33/56; B29C33/68; B29K; B29K2105/00; B29K2105/06; B29K2105/12; B29K2105/128; B29L; B29L2009/00; Y; Y10; Y10S; Y10S425/00; Y10S425/20; Y10S425/201; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987
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) | 1971-06-18 | 1971-12-18 | 1972-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-18 | 1975-12-18 | 1976-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-18 | 1979-12-18 | 1980-06-18 | $7700.00 | Window Closed / Lapsed |