US3460304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural panel with interlocking edges
Assignee: Dow Chemical Co
•
Filing: 1966-05-20
•
Granted: 1969-08-12
•
Expires: 1986-05-20
Abstract
No abstract record available.
Inventors
- 👤 Karl F Braeuninger
- 👤 Gordon K Glaza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:44
CPC Classifications
E; E01; E01C; E01C9/00; E01C9/08; E01C9/083; F; F16; F16B; F16B5/00; F16B5/0096; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49925; Y10T29/49936
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE136268C
Cited
US1617274A
Cited
US1826114A
Cited
US2891525A
Cited
GB913328A
Cited
US3061349A
Cited
US3093219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |