Patent US2458285A successfully refreshed from Google Patents.
US2458285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of lining combustion tubes and the like
Assignee: Meyer-Balzer Fuel Unit Inc
•
Filing: 1947-11-17
•
Granted: 1949-01-04
•
Expires: 1967-11-17
Abstract
No abstract record available.
Inventors
- 👤 Meyer David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:21
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B28/00; C04B28/14; C04B38/00; C04B41/45; C04B41/50; C04B41/5076; C04B41/5085; C04B41/80; C04B41/81; C04B41/85; Y; Y10; Y10S; Y10S264/00; Y10S264/63
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) | 1952-01-04 | 1952-07-05 | 1953-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-04 | 1956-07-05 | 1957-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-04 | 1960-07-05 | 1961-01-04 | $7700.00 | Window Closed / Lapsed |