US2258574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall construction
Assignee: Individual
•
Filing: 1939-01-06
•
Granted: 1941-10-07
•
Expires: 1959-01-06
Abstract
No abstract record available.
Inventors
- 👤 Marshall L Leary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:29
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/84; E04B2/842; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0832; E04F13/0833; E04F13/0841; E04B2/72; E04B2/723; E04B2002/725; E04B2/74; E04B2002/7461; E04B2002/7475
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) | 1944-10-06 | 1945-04-07 | 1945-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-10-06 | 1949-04-07 | 1949-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-10-06 | 1953-04-07 | 1953-10-07 | $7700.00 | Window Closed / Lapsed |