US2475377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detonation meter for combustion motors
Assignee: Hartford National Bank and Trust Co
•
Filing: 1943-01-20
•
Granted: 1949-07-05
•
Expires: 1963-01-20
Abstract
No abstract record available.
Inventors
- 👤 Bruin Sake Leendert De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:13
CPC Classifications
G; G01; G01L; G01L23/00; G01L23/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2031919A
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US2001096A
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US2082646A
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US2113376A
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GB504509A
Cited
US2272602A
Cited
US2291045A
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US2306372A
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US2340714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-04 | 1953-01-03 | 1953-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-04 | 1957-01-03 | 1957-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-04 | 1961-01-03 | 1961-07-05 | $7700.00 | Window Closed / Lapsed |