US3237865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for protecting refractory linings
Assignee: AMLICO FURNASPRAY CORP
•
Filing: 1963-07-30
•
Granted: 1966-03-01
•
Expires: 1983-07-30
Abstract
No abstract record available.
Inventors
- 👤 Kovach Bela
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:28
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/14; B05B7/1404; B05B7/1431; B05B7/1436; B05B7/02; B05B7/04; C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/44; C21C5/441; C21C5/443; E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; E04F21/12; F; F27; F27D; F27D1/00; F27D1/16; F27D1/1636; F27D1/1642
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US593732A
Cited
FR735384A
Cited
US2075867A
Cited
US2348395A
Cited
US2435605A
Cited
US2419410A
Cited
US2809126A
Cited
US2959358A
Cited
US3025006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |