US3520087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for concurrently grinding the teeth of a plurality of gear stock members
Assignee: Honda Motor Co Ltd
•
Filing: 1968-03-14
•
Granted: 1970-07-14
•
Expires: 1988-03-14
Abstract
No abstract record available.
Inventors
- 👤 Shigeo Kanai
- 👤 Yukiyasu Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:55
CPC Classifications
B; B23; B23F; B23F5/00; B23F5/02; B23F5/04; B23F23/00; B23F23/02; B23F23/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB561683A
Cited
US2424191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |