US3047725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine starting control system
Assignee: Automatic Switch Co
•
Filing: 1960-02-23
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Granted: 1962-07-31
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Expires: 1980-02-23
Abstract
No abstract record available.
Inventors
- 👤 Frank P Spinelli
- 👤 Castenschiold Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:04
CPC Classifications
H; H02; H02J; H02J9/00; H02J9/04; H02J9/06; H02J9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |