US2074656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall or roof construction
Assignee: Individual
•
Filing: 1935-08-28
•
Granted: 1937-03-23
•
Expires: 1955-08-28
Abstract
No abstract record available.
Inventors
- 👤 Luhl Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:15
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/02; E04D3/06; E04D3/14; E04D3/08; E04D2003/0812; E04D2003/0818; E04D2003/0825; E04D2003/0831; E04D2003/0887; E04D2003/0893
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) | 1940-03-22 | 1940-09-21 | 1941-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-03-22 | 1944-09-21 | 1945-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-03-22 | 1948-09-21 | 1949-03-23 | $7700.00 | Window Closed / Lapsed |