US2796728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision chronometer
Assignee: Individual
•
Filing: 1953-07-28
•
Granted: 1957-06-25
•
Expires: 1973-07-28
Abstract
No abstract record available.
Inventors
- 👤 Knud J Knudsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:20
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/02; G04C3/021
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1483814A
Cited
DE198426C
Cited
US754397A
Cited
US1731808A
Cited
FR649005A
Cited
US1798922A
Cited
DE602006C
Cited
US1965104A
Cited
US2031076A
Cited
US2200064A
Cited
US2323796A
Cited
DE750408C
Cited
US2402111A
Cited
GB594884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |