US1945045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Honing machine
Assignee: Barnes Drill Co
•
Filing: 1931-08-10
•
Granted: 1934-01-30
•
Expires: 1951-08-10
Abstract
No abstract record available.
Inventors
- 👤 Albert M Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:32
CPC Classifications
B; B24; B24B; B24B33/00; B24B33/06; Y; Y10; Y10T; Y10T408/00; Y10T408/21; Y10T408/36; Y10T408/385; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896
Claims Analysis
Total Claims: 0
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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) | 1937-01-29 | 1937-07-31 | 1938-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-01-29 | 1941-07-31 | 1942-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-01-29 | 1945-07-31 | 1946-01-30 | $7700.00 | Window Closed / Lapsed |