US2577531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuse construction
Assignee: ECONOMY FUSE AND MANUFACTURING Co
•
Filing: 1948-04-14
•
Granted: 1951-12-04
•
Expires: 1968-04-14
Abstract
No abstract record available.
Inventors
- 👤 Gordon F Laing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:44
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/05; H01H85/055
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1278893A
Cited
US1278322A
Cited
US1501018A
Cited
US1539870A
Cited
US2111749A
Cited
GB439517A
Cited
US2159423A
Cited
US2157152A
Cited
US2300620A
Cited
US2224111A
Cited
US2293953A
Cited
US2321711A
Cited
US2400491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-03 | 1955-06-04 | 1955-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-03 | 1959-06-04 | 1959-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-03 | 1963-06-04 | 1963-12-04 | $7700.00 | Window Closed / Lapsed |