Patent US2668783A successfully refreshed from Google Patents.
US3286155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Static inverter
Assignee: General Electric Co
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Filing: 1963-03-15
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Granted: 1966-11-15
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Expires: 1983-03-15
Abstract
No abstract record available.
Inventors
- 👤 Philip D Corey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:39
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/5152
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A CIRCIT FOR CONVERTING THE OUTPUT OF A UNDIRECTIONAL POTENTIAL SOURCE TO A QUASI-SQUARE WAVE OF A GIVEN FREQUENCY AND HAVING A FORM IN ACCORDANCE WITH THE EXPRESSION
Claim 2
Dependent Claim
28 words
A CIRCIT FOR CONVERTING THE OUTPUT OF A UNDIRECTIONAL POTENTIAL SOURCE TO A QUASI-SQUARE WAVE OF A GIVEN FREQUENCY AND HAVING A FORM IN ACCORDANCE WITH THE EXPRESSION
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |