Patent US2657068A successfully refreshed from Google Patents.
US2657068A
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US
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Chuck
Assignee: Cushman Chuck Co
•
Filing: 1949-06-28
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Granted: 1953-10-27
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Expires: 1969-06-28
Abstract
No abstract record available.
Inventors
- 👤 Harry E Sloan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:05
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/16; B23B31/16195; B23B31/162; B23B31/16204; Y; Y10; Y10T; Y10T279/00; Y10T279/19; Y10T279/1953
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1130768A
Cited
US2422785A
Cited
US1146193A
Cited
US1813705A
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US1999031A
Cited
US1849546A
Cited
US2224639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |