US2912940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof construction
Assignee: Individual
•
Filing: 1952-08-26
•
Granted: 1959-11-17
•
Expires: 1972-08-26
Abstract
No abstract record available.
Inventors
- 👤 Baroni Giorgio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:22
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/54; E04B; E04B7/00; E04B7/08; E04B7/10; E04B7/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1296359A
Cited
GB505787A
Cited
US2428325A
Cited
US2414125A
Cited
GB613529A
Cited
US2477852A
Cited
US2482798A
Cited
US2538330A
Cited
US2705349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |