US2434245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine
Assignee: Bower Roller Bearing Co
•
Filing: 1946-02-16
•
Granted: 1948-01-13
•
Expires: 1966-02-16
Abstract
No abstract record available.
Inventors
- 👤 Glen F Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:00
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/02; B24B5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1128091A
Cited
US891992A
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US1298486A
Cited
DE618962C
Cited
US2109600A
Cited
US2024118A
Cited
US2211350A
Cited
US2341825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-12 | 1951-07-14 | 1952-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-12 | 1955-07-14 | 1956-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-12 | 1959-07-14 | 1960-01-13 | $7700.00 | Window Closed / Lapsed |