US2741031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring device
Assignee: Individual
•
Filing: 1952-01-17
•
Granted: 1956-04-10
•
Expires: 1972-01-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Raymond F Martin
- 👤 Arthur W Enslein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:13
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US238563A
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US530686A
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US591761A
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CH15039A
Cited
US700286A
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US1065367A
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US874994A
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GB384791A
Cited
US2123360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |