Patent US3562741A successfully refreshed from Google Patents.
US3562741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic pulse generating system
Assignee: Unisys Corp
•
Filing: 1967-04-05
•
Granted: 1971-02-09
•
Expires: 1987-04-05
Abstract
Abstract A SYSTEM UTILIZING A SINGLE TRANSDUCER AND A MECHANICALLY TRANSLATABLE MEMBER FOR GENERATING A PLURALITY OF ELECTRICAL TIMING SIGNALS REPRESENTING DISCRETE POSITIONS OF THE TRANSLATABLE MEMBER INCLUDING A REFERENCE OR BENCH MARK SIGNAL. THE BENCH MARK SIGNAL IS BIPOLAR AND THE REMAINING TIMING SIGNALS ARE ESSENTIALLY UNIPOLAR. THE POLARITY OF THE SIGNALS IS DEPENDENT UPON THE SHAPE OF PROJECTIONS ON THE PERIPHERY OF A ROTATING DISC. THE BIPOLAR SIGNAL IS GENERATED FROM A SUBSTANTIALLY RECTANGULAR PROJECTION AND THE UNIPOLAR SIGNAL IS GENERATED FROM A SAWTOOTH-SHAPED PROJECTION.
Inventors
- 👤 John C Mcevoy
- 👤 Paul R Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:05
CPC Classifications
H; H03; H03M; H03M1/00; H03K; H03K3/00; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |