US3140364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary switch with u-shaped rotatable contact structure
Assignee: Landers Frary and Clark
•
Filing: 1962-09-11
•
Granted: 1964-07-07
•
Expires: 1982-09-11
Abstract
No abstract record available.
Inventors
- 👤 Swanke Roy
- 👤 David G Lord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:16
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/54; H01H19/56; H01H19/58; H01H11/00; H01H11/0056; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49208; Y10T29/49222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN ELECTRIC SWITCH COMPRISING AN INSULATING SUPPORT, A CONTACT ASSEMBLY SECURED TO SAID SUPPORT COMPRISING AN ELONGATED ARCUATE CONTACT, A CENTRAL TERMINAL, A PAIR OF CONTACTS POSITIONED RADIALLY OUTWARDLY OF SAID ARCUATE CONTACT AND A U-SHAPED SWITCH BLADE ROTATABLY MOUNTED IN ENGAGEMENT WITH SAID CENTRAL TERMINAL HAVING A PAIR OF CIRCUMFERENTIALLY SPACED CONTACT FINGERS FORMING ONE LEG OF SAID U-SHAPED BLADE AND A SINGLE CONTACT FINGER FORMING THE OTHER LEG OF SAID U-SHAPED BLADE.
Claim 2
Dependent Claim
74 words
AN ELECTRIC SWITCH COMPRISING AN INSULATING SUPPORT, A CONTACT ASSEMBLY SECURED TO SAID SUPPORT COMPRISING AN ELONGATED ARCUATE CONTACT, A CENTRAL TERMINAL, A PAIR OF CONTACTS POSITIONED RADIALLY OUTWARDLY OF SAID ARCUATE CONTACT AND A U-SHAPED SWITCH BLADE ROTATABLY MOUNTED IN ENGAGEMENT WITH SAID CENTRAL TERMINAL HAVING A PAIR OF CIRCUMFERENTIALLY SPACED CONTACT FINGERS FORMING ONE LEG OF SAID U-SHAPED BLADE AND A SINGLE CONTACT FINGER FORMING THE OTHER LEG OF SAID U-SHAPED BLADE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |