US2561187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Program-timing mechanism
Assignee: Motorola Solutions Inc
•
Filing: 1945-04-25
•
Granted: 1951-07-17
•
Expires: 1965-04-25
Abstract
No abstract record available.
Inventors
- 👤 Harold F Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:38
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/10; H01H43/12; H01H43/125; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86445
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB271995A
Cited
US1963495A
Cited
US2106042A
Cited
US2225407A
Cited
US2161604A
Cited
US2168068A
Cited
US2094925A
Cited
US2241610A
Cited
US2376901A
Cited
US2391718A
Cited
US2425788A
Cited
US2374590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |