Patent US2864251A successfully refreshed from Google Patents.
US2864251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building wall construction
Assignee: Individual
•
Filing: 1954-05-18
•
Granted: 1958-12-16
•
Expires: 1974-05-18
Abstract
No abstract record available.
Inventors
- 👤 Imbrogno Anthony
- 👤 Jr Anthony J Imbrogno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:55
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B2001/7679
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US90580A
Cited
GB136877A
Cited
US1568997A
Cited
US1819405A
Cited
FR713103A
Cited
US2008775A
Cited
US2107523A
Cited
US2202745A
Cited
US2208589A
Cited
US2181814A
Cited
US2364220A
Cited
FR995738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |