US2450164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for testing electrical ignition systems of internal-combustion engines
Assignee: Napier Turbochargers Ltd
•
Filing: 1944-02-01
•
Granted: 1948-09-28
•
Expires: 1964-02-01
Abstract
No abstract record available.
Inventors
- 👤 Ramsay Frank Raymond Faber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:31
CPC Classifications
F; F02; F02P; F02P17/00; F02P17/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2100702A
Cited
US2094472A
Cited
US2188845A
Cited
US2178471A
Cited
US2324458A
Cited
US2355363A
Cited
US2381609A
Cited
US2366355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-28 | 1952-03-29 | 1952-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-28 | 1956-03-29 | 1956-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-28 | 1960-03-29 | 1960-09-28 | $7700.00 | Window Closed / Lapsed |