Patent US5283946A successfully refreshed from Google Patents.
Patent US2570481A successfully refreshed from Google Patents.
US2570481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch construction
Assignee: Guardian Electric Manufacturing Co
•
Filing: 1946-09-28
•
Granted: 1951-10-09
•
Expires: 1966-09-28
Abstract
No abstract record available.
Inventors
- 👤 Charles H Priesmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:07
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/32; H01H3/50; H01H3/503
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1854166A
Cited
US958803A
Cited
US1215224A
Cited
US1231983A
Cited
US1576276A
Cited
US1950225A
Cited
US1972985A
Cited
US1974488A
Cited
US2265124A
Cited
US2415134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |