US2527554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrading contact wheel
Assignee: 3M Co
•
Filing: 1945-04-16
•
Granted: 1950-10-31
•
Expires: 1965-04-16
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Kimball
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:59
CPC Classifications
B; B24; B24B; B24B21/00; B24B21/04; B24B21/12; B24B21/14; F; F16; F16H; F16H37/00; F16H2700/00; F16H2700/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US554758A
Cited
US590714A
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US1195389A
Cited
US1182162A
Cited
US1511245A
Cited
US2087012A
Cited
US2130850A
Cited
US2168871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |