US3024329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum switch
Assignee: Individual
•
Filing: 1959-11-09
•
Granted: 1962-03-06
•
Expires: 1979-11-09
Abstract
No abstract record available.
Inventors
- 👤 Charles L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:22
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/60; H01H33/66; H01H33/666; H01H33/6664; H01H51/00; H01H51/28
Claims Analysis
Total Claims: 0
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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) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |