US2543245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuse construction
Assignee: ECONOMY FUSE AND MANUFACTURING Co
•
Filing: 1949-04-12
•
Granted: 1951-02-27
•
Expires: 1969-04-12
Abstract
No abstract record available.
Inventors
- 👤 Gordon F Laing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:20
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/05; H01H85/055
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1122478A
Cited
US1280478A
Cited
US1898099A
Cited
US2111749A
Cited
US2300620A
Cited
US2281795A
Cited
US2400491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |