US3001333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof covering comprising structural members made from plastics
Assignee: Edit Di Ing Renato Piana & C S
•
Filing: 1956-08-03
•
Granted: 1961-09-26
•
Expires: 1976-08-03
Abstract
No abstract record available.
Inventors
- 👤 Piana Renato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:00
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/24; E04D3/32; E04D3/36; E04D3/361; E04D3/363
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US395306A
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US2066255A
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US2294555A
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US2323417A
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US2388297A
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US2354485A
Cited
US2467604A
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US2699128A
Cited
US2685851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |