Patent US3452756A successfully refreshed from Google Patents.
US3090844A
Expired / Lapsed
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Electrical switching apparatus
Assignee: Fritz Hellige und Co GmbH
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Filing: 1960-07-12
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Granted: 1963-05-21
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Expires: 1980-07-12
Abstract
No abstract record available.
Inventors
- 👤 Stren Benno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:26
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/36; H01H1/40; H01H1/403; A; A61; A61B; A61B5/00; A61B5/24; A61B5/30; A61B5/304
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
ELECTRICAL SWITCHING APPARATUS COMPRISING A FIRST STEP OF CONTACTS, A SECOND SET OF CONTACTS ADAPTED TO BE PLACED IN ELECTRICAL COMMUNICATION WITH CONTACTS OF THE FIRST SET ACCORDING TO A PRESELECTED PROGRAMME, A PROGRAMME REGISTER, AND A CASTING REMOVABLE SUPPORTING SAID REGISTER, SAID REGISTER COMPRISING A PLURALITY OF INDIVIDUAL PROGRAMME BOARDS EACH HAVING A FIRST SET OF ELECTRICALLY CONDUCTIVE STRIPS MUTUALLY INSULATED FROM ONE ANOTHER, A SECOND SET OF ELECTRICALLY CONDUCTIVE STRIPS MUTUALLY INSULATED FROM ONE ANOTHER AND ARRANGED TRANSVERSELY OF THOSE OF THE FIRST SET AND A PLURALITY OF ELECTRICAL CONNECTING MEANS CONNECTING INDIVIDUAL STRIPS OF THE FIRST SET TO PRESELECTED INDIVIDUAL STRIPS OF THE SECOND SET AT POINTS WHERE THEY CROSS ANOTHER, THE STRIP OF THE FIRST SET BEING OTHERWISE
Claim 2
Dependent Claim
122 words
ELECTRICAL SWITCHING APPARATUS COMPRISING A FIRST STEP OF CONTACTS, A SECOND SET OF CONTACTS ADAPTED TO BE PLACED IN ELECTRICAL COMMUNICATION WITH CONTACTS OF THE FIRST SET ACCORDING TO A PRESELECTED PROGRAMME, A PROGRAMME REGISTER, AND A CASTING REMOVABLE SUPPORTING SAID REGISTER, SAID REGISTER COMPRISING A PLURALITY OF INDIVIDUAL PROGRAMME BOARDS EACH HAVING A FIRST SET OF ELECTRICALLY CONDUCTIVE STRIPS MUTUALLY INSULATED FROM ONE ANOTHER, A SECOND SET OF ELECTRICALLY CONDUCTIVE STRIPS MUTUALLY INSULATED FROM ONE ANOTHER AND ARRANGED TRANSVERSELY OF THOSE OF THE FIRST SET AND A PLURALITY OF ELECTRICAL CONNECTING MEANS CONNECTING INDIVIDUAL STRIPS OF THE FIRST SET TO PRESELECTED INDIVIDUAL STRIPS OF THE SECOND SET AT POINTS WHERE THEY CROSS ANOTHER, THE STRIP OF THE FIRST SET BEING OTHERWISE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |