Patent US1287885A successfully refreshed from Google Patents.
Patent US2578494A successfully refreshed from Google Patents.
US2578494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switch
Assignee: Individual
•
Filing: 1949-05-27
•
Granted: 1951-12-11
•
Expires: 1969-05-27
Abstract
No abstract record available.
Inventors
- 👤 Wiggins Harry Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:09
CPC Classifications
H; H01; H01H; H01H23/00; H01H23/02; H01H23/12; H01H23/16; H01H23/168
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US109641A
Cited
US1684982A
Cited
FR658035A
Cited
US1938309A
Cited
US2002491A
Cited
US2151910A
Cited
US2073529A
Cited
US2314465A
Cited
US2317727A
Cited
US2293318A
Cited
US2400849A
Cited
US2457153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |