US3210588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surge protector
Assignee: Individual
•
Filing: 1962-05-22
•
Granted: 1965-10-05
•
Expires: 1982-05-22
Abstract
No abstract record available.
Inventors
- 👤 Demurjian Ashod Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:43
CPC Classifications
H; H01; H01T; H01T4/00; H01T4/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
68 words
A SURGE PROTECTOR FOR AN ELECTRICAL CIRCUIT COMPRISING A HOUSING, A CATHODE MOUNTED IN SAID HOUSING, AN ANODE MOUNTED IN SAID HOUSING SPACED FROM SAID CATHODE, SAID MOUNTINGS FORMING A PREDETERMINED SPACING FORMING A SPARK GAP FOR GROUNDING A SURGE IN AN ELECTRIC LINE ABOVE A PREDETERMINED MAXIMUM, THE OPPOSED SURFACES OF SAID ANODE AND CATHODE BEING POLISHED, FLAT, PARALLEL SURFACES, SAID ANODE AND CATHODE COMPRISING TITANIUM DIBORATE.
References Cited (Backward Citations)
US2619518A
Cited
US3102968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |