US2627598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase shift system
Assignee: Unisys Corp
•
Filing: 1947-02-20
•
Granted: 1953-02-03
•
Expires: 1967-02-20
Abstract
No abstract record available.
Inventors
- 👤 Jay E Browder
- 👤 Victor J Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:33
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/18; H03H7/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2256482A
Cited
US2231955A
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US2241615A
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US2256538A
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US2285969A
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US2356186A
Cited
US2434057A
Cited
US2405568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-03 | 1956-08-04 | 1957-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-03 | 1960-08-04 | 1961-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-03 | 1964-08-04 | 1965-02-03 | $7700.00 | Window Closed / Lapsed |