US2945969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary switching apparatus
Assignee: MASON ELECTRIC CORP
•
Filing: 1958-02-03
•
Granted: 1960-07-19
•
Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 Howard F Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:16
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22; H01H3/28; H01H43/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1692408A
Cited
US2558718A
Cited
US2831082A
Cited
GB780262A
Cited
US2831081A
Cited
US2831073A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |