US2907910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective electrical discharge devices
Assignee: Westinghouse Air Brake Co
•
Filing: 1956-08-20
•
Granted: 1959-10-06
•
Expires: 1976-08-20
Abstract
No abstract record available.
Inventors
- 👤 Lester O Marsteller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:53
CPC Classifications
H; H01; H01T; H01T4/00; H01T4/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A PROCTECTIVE ELECTRICAL DISCHARGE DEVICE COMPRISING, TWO CONDUCTIVE ELECTRODE, AN INSULATING MEMBER MADE OF A TETRAFLUORETHYLENE MATERIAL SEPARTING SAID ELECTRODES TO PROVIDE A SPACING BETWEEN THE ELECTRODES LIMITED TO A SHALLOW PERIPHERAL GROOVE, AND BRACKET MEANS FOR SUPPORTING SAID ELECTRODES AND MEMBER, SAID BRACKET MEANS INCLUDING ALIGNED SUPPORTING ARMS WHICH ARE SUB-
Claim 2
Dependent Claim
52 words
A PROCTECTIVE ELECTRICAL DISCHARGE DEVICE COMPRISING, TWO CONDUCTIVE ELECTRODE, AN INSULATING MEMBER MADE OF A TETRAFLUORETHYLENE MATERIAL SEPARTING SAID ELECTRODES TO PROVIDE A SPACING BETWEEN THE ELECTRODES LIMITED TO A SHALLOW PERIPHERAL GROOVE, AND BRACKET MEANS FOR SUPPORTING SAID ELECTRODES AND MEMBER, SAID BRACKET MEANS INCLUDING ALIGNED SUPPORTING ARMS WHICH ARE SUB-
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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) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |