US2605754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low-tension ignition spark plug for condenser discharge
Assignee: Smitsvonk NV
•
Filing: 1948-09-21
•
Granted: 1952-08-05
•
Expires: 1968-09-21
Abstract
No abstract record available.
Inventors
- 👤 Smits Wytze Beye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:22
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1537903A
Cited
US1009867A
Cited
US1445712A
Cited
US1991369A
Cited
US2017364A
Cited
GB536460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |