US2744450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Right angle attachment for boring, drilling, and milling machines
Assignee: GA Gray Co
•
Filing: 1951-06-13
•
Granted: 1956-05-08
•
Expires: 1971-06-13
Abstract
No abstract record available.
Inventors
- 👤 John M Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:12
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q2705/00; B23Q2705/02; B23Q2705/026; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/304424; Y10T409/306664; Y10T409/306776; Y10T409/307056; Y10T409/307112; Y10T409/307784
Claims Analysis
Total Claims: 0
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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) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |