US2548009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method of making friction lining
Assignee: Individual
•
Filing: 1947-12-08
•
Granted: 1951-04-10
•
Expires: 1967-12-08
Abstract
No abstract record available.
Inventors
- 👤 Donald W Fether
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:24
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/22; B29C43/24; F; F21; F21V; F21V5/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB133155A
Cited
US1342114A
Cited
US1590854A
Cited
US1542119A
Cited
US1964177A
Cited
US1936843A
Cited
US2178955A
Cited
US2067360A
Cited
US2287326A
Cited
US2434707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |