Patent US2504244A successfully refreshed from Google Patents.
US2504244A
Expired / Lapsed
US
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Measuring instrument
Assignee: Individual
•
Filing: 1946-08-07
•
Granted: 1950-04-18
•
Expires: 1966-08-07
Abstract
No abstract record available.
Inventors
- 👤 Charles E Barclay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:49
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US302767A
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US1424492A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-17 | 1953-10-17 | 1954-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-17 | 1957-10-17 | 1958-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-17 | 1961-10-17 | 1962-04-18 | $7700.00 | Window Closed / Lapsed |