US2594028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck mechanism
Assignee: Joy Manufacturing Co
•
Filing: 1945-01-04
•
Granted: 1952-04-22
•
Expires: 1965-01-04
Abstract
No abstract record available.
Inventors
- 👤 Harry C Johansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:25
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/08; E21B19/086; Y; Y10; Y10T; Y10T279/00; Y10T279/12; Y10T279/1241; Y10T279/19; Y10T279/1953
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US605855A
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US675047A
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US821645A
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US998248A
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US1049725A
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US1149034A
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US1726521A
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US2310960A
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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) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |