US2641874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine
Assignee: Milacron Inc
•
Filing: 1950-01-21
•
Granted: 1953-06-16
•
Expires: 1970-01-21
Abstract
No abstract record available.
Inventors
- 👤 Roy G Kirby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:46
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/08; B24B19/12; Y; Y10; Y10S; Y10S451/00; Y10S451/913; Y10T; Y10T82/00; Y10T82/25; Y10T82/2552; Y10T82/2554; Y10T82/2556; Y10T82/2564
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191312235A
Cited
US1716115A
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US2018347A
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US1938439A
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US2060437A
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US2415801A
Cited
US2422681A
Cited
US2352608A
Cited
US2334938A
Cited
US2414126A
Cited
US2557043A
Cited
US2508998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |