US2665352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact-spring switch assembly
Assignee: TDK Micronas GmbH
•
Filing: 1951-03-10
•
Granted: 1954-01-05
•
Expires: 1971-03-10
Abstract
No abstract record available.
Inventors
- 👤 John I Bellamy
- 👤 Richard P Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:47
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54; H01H50/56; H01H50/58
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US752613A
Cited
US753918A
Cited
US1274874A
Cited
US1579301A
Cited
US2077091A
Cited
US2156465A
Cited
US2510157A
Cited
GB620972A
Cited
US2473982A
Cited
US2500413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |