US3353316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel-covered structures
Assignee: Individual
•
Filing: 1965-06-01
•
Granted: 1967-11-21
•
Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 Edward T Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:05
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US854235A
Cited
US2207679A
Cited
US2759439A
Cited
US2971617A
Cited
US2976970A
Cited
US2948362A
Cited
US3170217A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |