US2606981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic switching device of the cartridge or plug-type
Assignee: F K G FRITZ KESSELRING GERATEB
•
Filing: 1947-06-28
•
Granted: 1952-08-12
•
Expires: 1967-06-28
Abstract
No abstract record available.
Inventors
- 👤 Kesselring Fritz
- 👤 Degler Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:54
CPC Classifications
H; H01; H01H; H01H47/00; H01H47/001; H01H1/00; H01H1/62; H01H3/00; H01H3/22; H01H3/28; H01H33/00; H01H33/60; H01H33/64; H01H33/66; H01H51/00; H01H51/28; H02; H02M; H02M1/00; H02M1/20; H02M1/22; H02M1/26
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |