Patent US3487399A successfully refreshed from Google Patents.
US3487399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring of lengths by means of impulse counting
Assignee: Firma Wenczler and Heidenhain
•
Filing: 1965-04-12
•
Granted: 1969-12-30
•
Expires: 1985-04-12
Abstract
No abstract record available.
Inventors
- 👤 Horst Wogatzke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:28
CPC Classifications
H; H03; H03M; H03M1/00; G; G01; G01D; G01D5/00; G01D5/26; G01D5/32; G01D5/34; G01D5/36; G01D5/363; G01D5/38; H03K; H03K21/00; H03K21/02; H03K5/00; H03K5/22; H03K5/26; H03M1/12; H03M1/124
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) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |