Patent US600331A successfully refreshed from Google Patents.
Patent US4552154A successfully refreshed from Google Patents.
Patent US3562011A successfully refreshed from Google Patents.
Patent US1028532A successfully refreshed from Google Patents.
Patent US2000600A successfully refreshed from Google Patents.
US2000600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric clock
Assignee: Individual
•
Filing: 1930-09-25
•
Granted: 1935-05-07
•
Expires: 1950-09-25
Abstract
No abstract record available.
Inventors
- 👤 Loeffler Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:19
CPC Classifications
G; G04; G04C; G04C1/00; G04C1/04; G04C1/06; G04C1/062
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) | 1938-05-06 | 1938-11-05 | 1939-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-05-06 | 1942-11-05 | 1943-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-05-06 | 1946-11-05 | 1947-05-07 | $7700.00 | Window Closed / Lapsed |