US2595665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall construction
Assignee: National Steel Corp
•
Filing: 1946-07-11
•
Granted: 1952-05-06
•
Expires: 1966-07-11
Abstract
No abstract record available.
Inventors
- 👤 Thaddeus B Hurd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:11
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/02; E04B1/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1731098A
Cited
US1745588A
Cited
US1858701A
Cited
US2148436A
Cited
US2235811A
Cited
US2368523A
Cited
US2395726A
Cited
US2490663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |