US2549134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp socket having leaf spring contacts
Assignee: ELECTRIC SERVICE Manufacturing CO
•
Filing: 1947-12-15
•
Granted: 1951-04-17
•
Expires: 1967-12-15
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Shaback
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:23
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/05; H01R33/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1085960A
Cited
US1383764A
Cited
US1664403A
Cited
US2036366A
Cited
US2169219A
Cited
US2254754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |