US1952194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broaching attachment
Assignee: Devlieg Bullard Inc
•
Filing: 1931-09-03
•
Granted: 1934-03-27
•
Expires: 1951-09-03
Abstract
No abstract record available.
Inventors
- 👤 Alfred E Drissner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:16
CPC Classifications
B; B23; B23D; B23D43/00; B23D43/02; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5178; Y10T407/00; Y10T407/16; Y10T409/00; Y10T409/40; Y10T409/400175; Y10T409/4028; Y10T409/402975; Y10T409/405775; Y10T409/4063; Y10T409/406475; Y10T409/40665; Y10T409/406825
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) | 1937-03-26 | 1937-09-25 | 1938-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-03-26 | 1941-09-25 | 1942-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-03-26 | 1945-09-25 | 1946-03-27 | $7700.00 | Window Closed / Lapsed |