US3384522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making composite decorative structural elements
Assignee: Individual
•
Filing: 1965-12-28
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Granted: 1968-05-21
•
Expires: 1985-12-28
Abstract
No abstract record available.
Inventors
- 👤 Rubenstein David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:05
CPC Classifications
B; B28; B28B; B28B23/00; B28B23/0006; B28B1/00; B28B1/14; B28B1/16; B28B3/00; B28B3/02; B32; B32B; B32B13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |