US2475819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic limit switch
Assignee: SENN Corp
•
Filing: 1945-02-24
•
Granted: 1949-07-12
•
Expires: 1965-02-24
Abstract
No abstract record available.
Inventors
- 👤 Charles F Coake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:22
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1085721A
Cited
US808834A
Cited
US890229A
Cited
US1693313A
Cited
US2145950A
Cited
US2119450A
Cited
US2260813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |