Patent US1794705A successfully refreshed from Google Patents.
US1794705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace arch
Assignee: LIPTAK FIRE BRICK ARCH Co
•
Filing: 1928-09-06
•
Granted: 1931-03-03
•
Expires: 1948-09-06
Abstract
No abstract record available.
Inventors
- 👤 Moe Ingemon
- 👤 Charles A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:38
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/02; F27D1/021; F23; F23M; F23M5/00; F23M5/06; F23M5/08; F27D1/022; F27D1/12; F27D9/00; F27D2009/0002; F27D2009/0064
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1934-03-02 | 1934-09-01 | 1935-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-03-02 | 1938-09-01 | 1939-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-03-02 | 1942-09-01 | 1943-03-03 | $7700.00 | Window Closed / Lapsed |