US3277609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for surface grinding
Assignee: Individual
•
Filing: 1964-02-07
•
Granted: 1966-10-11
•
Expires: 1984-02-07
Abstract
No abstract record available.
Inventors
- 👤 Horie Imitaro
- 👤 Kimura Yozo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:20
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/10; B24B7/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
55 words
AN APPARATUS FOR SURFACE GRINDING METAL PLATES AND SHEETS COMPRISING: A ROTATABLE GRINDING WHEEL CONSISTING ESSENTIALLY OF ABRASIVE PARTICLES UNIFORMLY DISTRIBUTED IN A SPONGY POLYVINYL ACETAL MATRIX, SAID GRINDING WHEEL BEING OF AT LEAST 100 MM. IN AXIAL LENGTH; BACKUP MEANS ASSOCIATED WITH SAID GRINDING WHEEL AND RADIALLY ALIGNED THEREWITH AND MEANS FOR URGING SAID
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |