US2879630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding of gear-wheels
Assignee: Maag Zahnrader und Maschinen AG
•
Filing: 1955-08-03
•
Granted: 1959-03-31
•
Expires: 1975-08-03
Abstract
No abstract record available.
Inventors
- 👤 Aeppli Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:24
CPC Classifications
B; B23; B23F; B23F19/00; B23F19/002; B23F5/00; B23F5/02; B23F5/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |