Patent US1905824A successfully refreshed from Google Patents.
US2326541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tool
Assignee: Billings & Spencer Co
•
Filing: 1940-12-16
•
Granted: 1943-08-10
•
Expires: 1960-12-16
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Kuehn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:06
CPC Classifications
B; B23; B23B; B23B7/00; B23B7/02; B23B7/10; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17411; Y10T279/17471; Y10T279/34; Y10T279/3481; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5125; Y10T82/00; Y10T82/25; Y10T82/2514; Y10T82/2521
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1946-08-09 | 1947-02-08 | 1947-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-09 | 1951-02-08 | 1951-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-09 | 1955-02-08 | 1955-08-10 | $7700.00 | Window Closed / Lapsed |