US2490397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reamer
Assignee: David Brown and Sons Huddersfield Ltd
•
Filing: 1946-06-06
•
Granted: 1949-12-06
•
Expires: 1966-06-06
Abstract
No abstract record available.
Inventors
- 👤 Aked Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:38
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/03; B23B29/034; B23B29/03432; B23B29/03446; Y; Y10; Y10T; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8588; Y10T408/85892; Y10T408/85895
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1290206A
Cited
US2090718A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |