US2353514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective device for drills
Assignee: Individual
•
Filing: 1943-05-05
•
Granted: 1944-07-11
•
Expires: 1963-05-05
Abstract
No abstract record available.
Inventors
- 👤 Jay P Slater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:05
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/0042; B23Q11/0053; B23B; B23B51/00; B23Q11/0071; B23B2251/00; B23B2251/62; Y; Y02; Y02P; Y02P70/00; Y02P70/10; Y10; Y10S; Y10S408/00; Y10S408/71; Y10T; Y10T408/00; Y10T408/55; Y10T408/89; Y10T408/892; Y10T408/8925; Y10T408/96; Y10T408/99
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-07-11 | 1948-01-10 | 1948-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-07-11 | 1952-01-10 | 1952-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-07-11 | 1956-01-10 | 1956-07-11 | $7700.00 | Window Closed / Lapsed |