US2773148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four plate mat switch
Assignee: Stanley Works
•
Filing: 1954-03-04
•
Granted: 1956-12-04
•
Expires: 1974-03-04
Abstract
No abstract record available.
Inventors
- 👤 Sheldon S Roby
- 👤 Ferry Chamberlain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:33
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/14; H01H3/141
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |