Patent US2550414A successfully refreshed from Google Patents.
US2550414A
Expired / Lapsed
US
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Automatic engine starting equipment
Assignee: Motors Liquidation Co
•
Filing: 1949-05-24
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Granted: 1951-04-24
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Expires: 1969-05-24
Abstract
No abstract record available.
Inventors
- 👤 Harold G Haines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:11
CPC Classifications
H; H02; H02P; H02P9/00; F; F02; F02N; F02N11/00; F02N11/08; F02N11/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1776683A
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US1705816A
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US1981859A
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DE696046C
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US2197726A
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US2248244A
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US2307845A
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US2324005A
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US2374251A
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US2384135A
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US2451976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |