US2869854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balance
Assignee: Individual
•
Filing: 1953-06-29
•
Granted: 1959-01-20
•
Expires: 1973-06-29
Abstract
No abstract record available.
Inventors
- 👤 Ruefenacht Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:39
CPC Classifications
G; G01; G01G; G01G1/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US789781A
Cited
US1121861A
Cited
US1104892A
Cited
US1167584A
Cited
US1169929A
Cited
US1562936A
Cited
GB350590A
Cited
US2081252A
Cited
US2082968A
Cited
US2181272A
Cited
US2225582A
Cited
US2373056A
Cited
US2580567A
Cited
US2567161A
Cited
US2624564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |