US2410883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency generating system
Assignee: Central Commercial Co
•
Filing: 1943-09-17
•
Granted: 1946-11-12
•
Expires: 1963-09-17
Abstract
No abstract record available.
Inventors
- 👤 Merwin J Larsen
- 👤 Carl S Schjonberg
- 👤 James A Oswald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:23
CPC Classifications
G; G10; G10H; G10H5/00; G10H5/02; G10H5/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-11-11 | 1950-05-13 | 1950-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-11-11 | 1954-05-13 | 1954-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-11-11 | 1958-05-13 | 1958-11-12 | $7700.00 | Window Closed / Lapsed |