US2451447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hobbing machine
Assignee: Schneider Electric Buildings Americas Inc
•
Filing: 1942-02-13
•
Granted: 1948-10-12
•
Expires: 1962-02-13
Abstract
No abstract record available.
Inventors
- 👤 Stafford M Ransome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:48
CPC Classifications
B; B23; B23F; B23F5/00; B23F5/20; B23F5/205; B23F5/22; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/101113; Y10T409/101431; Y10T409/10159; Y10T409/102544; Y10T409/102703; Y10T409/102862
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-12 | 1952-04-12 | 1952-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-12 | 1956-04-12 | 1956-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-12 | 1960-04-12 | 1960-10-12 | $7700.00 | Window Closed / Lapsed |