US2201504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof structure and truss therefor
Assignee: Individual
•
Filing: 1938-05-20
•
Granted: 1940-05-21
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Expires: 1958-05-20
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Ruppel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:02
CPC Classifications
E; E04; E04B; E04B7/00; E04B7/02; E04B7/06; E04B7/063; E04C; E04C3/00; E04C3/02; E04C3/04; E04C3/08; E04C3/11; E04C2003/0486; E04C2003/0491
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-05-21 | 1943-11-20 | 1944-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-05-21 | 1947-11-20 | 1948-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-05-21 | 1951-11-20 | 1952-05-21 | $7700.00 | Window Closed / Lapsed |