US2639643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment for lathes
Assignee: Individual
•
Filing: 1948-05-07
•
Granted: 1953-05-26
•
Expires: 1968-05-07
Abstract
No abstract record available.
Inventors
- 👤 Raymond C Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:44
CPC Classifications
B; B23; B23C; B23C7/00; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/309576; Y10T409/309856
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1614432A
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US2011835A
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US2178130A
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US2116248A
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US2386461A
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US2455662A
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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) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |