US2454087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal thread milling mechanism
Assignee: Schneider Electric Buildings Americas Inc
•
Filing: 1945-04-19
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Granted: 1948-11-16
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Expires: 1965-04-19
Abstract
No abstract record available.
Inventors
- 👤 Stafford M Ransome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:12
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/72; B23Q1/76; B23G; B23G1/00; B23G1/32; B23G1/34; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/300056; Y10T409/300672; Y10T409/300728
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2169467A
Cited
US2228498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |