US2993701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck opening and closing mechanism
Assignee: Skinner Chuck Co
•
Filing: 1958-06-02
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Granted: 1961-07-25
•
Expires: 1978-06-02
Abstract
No abstract record available.
Inventors
- 👤 Harold L Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:18
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/16; B23B31/16195; B23B31/162; B23B31/16233; B23B31/16237; B23B31/16245; Y; Y10; Y10T; Y10T279/00; Y10T279/19; Y10T279/1926; Y10T279/1961; Y10T279/1973; Y10T279/1986
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1548227A
Cited
GB297077A
Cited
US1971537A
Cited
FR859916A
Cited
US2697612A
Cited
US2828134A
Cited
US2825572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |