Patent US1809387A successfully refreshed from Google Patents.
Patent US1601252A successfully refreshed from Google Patents.
US1601252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rounding the edges at the ends of cylindrical rollers for roller bearings
Assignee: Individual
•
Filing: 1925-08-04
•
Granted: 1926-09-28
•
Expires: 1945-08-04
Abstract
No abstract record available.
Inventors
- 👤 Lines Charles Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:05
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/34; B; B21; B21J; B21J1/00; B21J1/04; B21K; B21K1/00; B21K1/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49693
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1929-09-27 | 1930-03-29 | 1930-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-09-27 | 1934-03-29 | 1934-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-09-27 | 1938-03-29 | 1938-09-28 | $7700.00 | Window Closed / Lapsed |