Patent US3218238A successfully refreshed from Google Patents.
US3218238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cradle-switch spring assembly
Assignee: International Standard Electric Corp
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Filing: 1962-06-13
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Granted: 1965-11-16
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Expires: 1982-06-13
Abstract
No abstract record available.
Inventors
- 👤 Bauer Ludwig
- 👤 Gruger Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:23
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/04; H04M1/06; H04M1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A CRADLE-SWITCH SPRING ASSEMBLY FOR A TELEPHONE SUBSET, SAID SUBSET PROVIDED WITH SOCKET MEANS, FLAT CONTACT SPRINGS INSERTED IN CAVITIES IN SAID SOCKET, FORM-LOCK MEANS FOR RETAINING SAID SPRINGS WITH THEIR OUTER EDGES IN THE REQUIRED POSITION, STRAP MEANS IN SAID CAVITIES FOR LIMITING THE CHATTER OF THE SAID CONTACT SPRINGS NORMALLY CAUSED BY THE OPERATION OF THE CONTACT SPRINGS, MOVABLE COVER MEANS FOR COVERING SAID SOCKET, CONE-SHAPED MEANS ON SAID COVER FOR HOLDING THE COVER IN A FIRST POSITION, FIRST MEANS ON SAID COVER FOR MAINTAINING SAID SPRING OPEN WHEN SAID COVER IS SAID FIRST POSITION AND NOSE MEANS ON SAID COVER FOR AUTOMATICALLY MOVING SAID COVER WHEN THE TELEPHONE STATION SUBSET CASE IS PLACED OVER SAID CRADLE SWITCH SPRING ASSEMBLY, SAID AUTOMATIC MOVEMENT OF SAID COVER OPERATING TO RELEASE SAID SPRING AND ALLOW SAID SPRING CONTACTS TO CLOSE.
Claim 2
Dependent Claim
140 words
A CRADLE-SWITCH SPRING ASSEMBLY FOR A TELEPHONE SUBSET, SAID SUBSET PROVIDED WITH SOCKET MEANS, FLAT CONTACT SPRINGS INSERTED IN CAVITIES IN SAID SOCKET, FORM-LOCK MEANS FOR RETAINING SAID SPRINGS WITH THEIR OUTER EDGES IN THE REQUIRED POSITION, STRAP MEANS IN SAID CAVITIES FOR LIMITING THE CHATTER OF THE SAID CONTACT SPRINGS NORMALLY CAUSED BY THE OPERATION OF THE CONTACT SPRINGS, MOVABLE COVER MEANS FOR COVERING SAID SOCKET, CONE-SHAPED MEANS ON SAID COVER FOR HOLDING THE COVER IN A FIRST POSITION, FIRST MEANS ON SAID COVER FOR MAINTAINING SAID SPRING OPEN WHEN SAID COVER IS SAID FIRST POSITION AND NOSE MEANS ON SAID COVER FOR AUTOMATICALLY MOVING SAID COVER WHEN THE TELEPHONE STATION SUBSET CASE IS PLACED OVER SAID CRADLE SWITCH SPRING ASSEMBLY, SAID AUTOMATIC MOVEMENT OF SAID COVER OPERATING TO RELEASE SAID SPRING AND ALLOW SAID SPRING CONTACTS TO CLOSE.
References Cited (Backward Citations)
US2566840A
Cited
DE1134111B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |