US2740069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine analyzer
Assignee: NORTH SHORE NEWS Co
•
Filing: 1950-05-31
•
Granted: 1956-03-27
•
Expires: 1970-05-31
Abstract
No abstract record available.
Inventors
- 👤 John L Minto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:40
CPC Classifications
F; F02; F02P; F02P17/00; F02P17/02; F02P17/04; F02P17/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2450164A
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US2367728A
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US2621306A
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US2431766A
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US2480878A
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US2449801A
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US2466924A
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US2496283A
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US2467834A
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US2460112A
Cited
US2496970A
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US2522124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |