Patent US2564364A successfully refreshed from Google Patents.
US2564364A
Expired / Lapsed
US
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Apparatus for trimming spherical segments
Assignee: Commercial Shearing Inc
•
Filing: 1946-02-05
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Granted: 1951-08-14
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Expires: 1966-02-05
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Kane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:22
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB176750A
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US1470168A
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AT122285B
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US1782237A
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US2026109A
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US2182707A
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US2345104A
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US2474149A
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US2363007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |