Patent US2322972A successfully refreshed from Google Patents.
US2322972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the protection of the guiding surfaces of the slides of machine tools
Assignee: Individual
•
Filing: 1941-03-08
•
Granted: 1943-06-29
•
Expires: 1961-03-08
Abstract
No abstract record available.
Inventors
- 👤 Rumpf Martin Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:14
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/08; F16C29/082; B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q11/00; B23Q11/08; F16C2322/00; F16C2322/39; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30392; Y10T409/50; Y10T409/508036; Y10T82/00; Y10T82/25; Y10T82/2566
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) | 1946-06-28 | 1946-12-28 | 1947-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-06-28 | 1950-12-28 | 1951-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-06-28 | 1954-12-28 | 1955-06-29 | $7700.00 | Window Closed / Lapsed |