US3386221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightweight panel
Assignee: Revere Copper and Brass Inc
•
Filing: 1967-09-08
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Granted: 1968-06-04
•
Expires: 1987-09-08
Abstract
No abstract record available.
Inventors
- 👤 Julius L Giovannucci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:23
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; E04C2/40
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) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |