US2886668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple pole vacuum switch
Assignee: Jennings Radio Manufacturing Corp
•
Filing: 1956-08-06
•
Granted: 1959-05-12
•
Expires: 1976-08-06
Abstract
No abstract record available.
Inventors
- 👤 Lewis B Steward
- 👤 Jack S Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:47
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/60; H01H33/66; H01H33/666; H01H33/6664
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1575599A
Cited
US2150379A
Cited
US2234834A
Cited
US2339675A
Cited
US2514913A
Cited
US2460201A
Cited
US2775671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |