US3207624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightning arrester valve element and method for making the same
Assignee: McGraw Edison Co
•
Filing: 1961-07-26
•
Granted: 1965-09-21
•
Expires: 1981-07-26
Abstract
No abstract record available.
Inventors
- 👤 Lawrence M Burrage
- 👤 Darrel D Mcstrack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:24
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/10; H01C7/102; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249967; Y10T428/249969
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A METHOD OF PRODUCING AN ELECTRICALLY INSULATING COATING ON A BLOCK OF RESISTANCE MATERIAL INCLUDING THE STEPS OF, APPLYING TO SAID BLOCK A COMPOSITION OF MATTER COMPRISING BY WEIGHT SUBSTANTIALLY:
Claim 2
Independent Claim
30 words
A METHOD OF PRODUCING AN ELECTRICALLY INSULATING COATING ON A BLOCK OF RESISTANCE MATERIAL INCLUDING THE STEPS OF, APPLYING TO SAID BLOCK A COMPOSITION OF MATTER COMPRISING BY WEIGHT SUBSTANTIALLY:
References Cited (Backward Citations)
US2253360A
Cited
US2998328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |