US2545959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio apparatus construction
Assignee: ILLINOIS WATCH CASE CO
•
Filing: 1947-09-03
•
Granted: 1951-03-20
•
Expires: 1967-09-03
Abstract
No abstract record available.
Inventors
- 👤 David M King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:23
CPC Classifications
H; H01; H01Q; H01Q7/00; H01Q7/02; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US521957A
Cited
US802979A
Cited
US945014A
Cited
US999207A
Cited
US1940259A
Cited
US2013421A
Cited
FR806180A
Cited
US2268104A
Cited
US2250936A
Cited
US2315315A
Cited
US2338477A
Cited
US2323093A
Cited
US2385364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |