US2748208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oiltight rotary selector switch
Assignee: Siemens Energy and Automation Inc
•
Filing: 1951-09-15
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Granted: 1956-05-29
•
Expires: 1971-09-15
Abstract
No abstract record available.
Inventors
- 👤 Nobel H Koertge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:54
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/02; H01H19/04; H01H19/06; H01H19/54; H01H19/60; H01H19/63; H01H11/00; H01H11/0006; H01H2011/0043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2205664A
Cited
US2357971A
Cited
US2357973A
Cited
US2488982A
Cited
US2480410A
Cited
US2498614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |