US2529471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marking arrangement for final selector switches
Assignee: Siemens Brothers and Co Ltd
•
Filing: 1946-04-25
•
Granted: 1950-11-07
•
Expires: 1966-04-25
Abstract
No abstract record available.
Inventors
- 👤 Long Douglas Percy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:20
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1830935A
Cited
US1922237A
Cited
US1951134A
Cited
US1903207A
Cited
US1956371A
Cited
US1877883A
Cited
US2013169A
Cited
US2070909A
Cited
US2087398A
Cited
US2087405A
Cited
US2093242A
Cited
US2172947A
Cited
US2140931A
Cited
US2190140A
Cited
US2375622A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |