US2697612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightweight chuck
Assignee: Cushman Chuck Co
•
Filing: 1950-04-01
•
Granted: 1954-12-21
•
Expires: 1970-04-01
Abstract
No abstract record available.
Inventors
- 👤 Harry E Sloan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:42
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/16; B23B31/16233; Y; Y10; Y10T; Y10T279/00; Y10T279/19; Y10T279/1973; Y10T279/1986; Y10T279/35
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US460601A
Cited
US1305138A
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US1420682A
Cited
US1335714A
Cited
US1864423A
Cited
US2191371A
Cited
US2513284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |