US3403481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Honing assembly including abrasive holder
Assignee: National Automatic Tool Co Inc
•
Filing: 1966-05-12
•
Granted: 1968-10-01
•
Expires: 1986-05-12
Abstract
No abstract record available.
Inventors
- 👤 Clarence A Mcdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:34
CPC Classifications
B; B24; B24B; B24B33/00; B24B33/08; B24B33/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123945A
Cited
US2097480A
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US2652838A
Cited
US2991597A
Cited
US2952952A
Cited
US3016660A
Cited
US3037333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |