US2547647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Straightedge
Assignee: Brown and Sharpe Manufacturing Co
•
Filing: 1946-02-15
•
Granted: 1951-04-03
•
Expires: 1966-02-15
Abstract
No abstract record available.
Inventors
- 👤 George N Levesque
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:37
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/34; Y; Y10; Y10S; Y10S33/00; Y10S33/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1054109A
Cited
US1383979A
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US1431638A
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US1563011A
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US1985576A
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US2036458A
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US2152556A
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US2252464A
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US2316975A
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US2292326A
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GB551361A
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US2370845A
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US2423620A
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US2381283A
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US2423867A
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US2403951A
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US2452860A
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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) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |