US2813935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple position switch
Assignee: LIBERTY Manufacturing CORP
•
Filing: 1956-03-15
•
Granted: 1957-11-19
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Expires: 1976-03-15
Abstract
No abstract record available.
Inventors
- 👤 Mogens W Bang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:27
CPC Classifications
H; H03; H03J; H03J5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1200894A
Cited
US1717370A
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US1591917A
Cited
US1684394A
Cited
US1763233A
Cited
US1867820A
Cited
US1965590A
Cited
US2594111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |