US2960078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door framework for open hearth furnaces or other industrial furnaces
Assignee: Individual
•
Filing: 1955-10-17
•
Granted: 1960-11-15
•
Expires: 1975-10-17
Abstract
No abstract record available.
Inventors
- 👤 Reining Helmut Paul Ott Gustav
- 👤 Reiche Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:23
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/18; F27D1/1858; F27D1/1866
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1073144A
Cited
US1070487A
Cited
US1168647A
Cited
US1277931A
Cited
FR551115A
Cited
US1836784A
Cited
US2170139A
Cited
US2781747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |