US3290561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor electrolyte
Assignee: Individual
•
Filing: 1963-08-26
•
Granted: 1966-12-06
•
Expires: 1983-08-26
Abstract
No abstract record available.
Inventors
- 👤 Burnham John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:17
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A ELECTROLYTE FOR USE IN ELECTROLYTIC CAPACITORS CONSISTING ESSENTIALLY OF A SUBSTANTIALLY NON-GAS FORMING MIXTURE UNDER OPERATING CONDITIONS OF AT LEAST ONE HETEROCYCLIC COMPOUND CONTAINING A NITROGEN HETEROCYCLIC ATOM LOCATED BETWEEN TWO CARBON ATOMS, AND A COMPOUND SELECTED FROM A GROUP CONSISTING OF ALIPHATIC ACIDS, ALPHA-HALOGEN SUBSTITUTED ALIPHATIC ACIDS, AND ANHYDRIDES THEREOF, SAID MIXTURE BEING SUBSTANTIALLY FREE OF FILM-FORMING COMPONENTS.
Claim 2
Dependent Claim
60 words
A ELECTROLYTE FOR USE IN ELECTROLYTIC CAPACITORS CONSISTING ESSENTIALLY OF A SUBSTANTIALLY NON-GAS FORMING MIXTURE UNDER OPERATING CONDITIONS OF AT LEAST ONE HETEROCYCLIC COMPOUND CONTAINING A NITROGEN HETEROCYCLIC ATOM LOCATED BETWEEN TWO CARBON ATOMS, AND A COMPOUND SELECTED FROM A GROUP CONSISTING OF ALIPHATIC ACIDS, ALPHA-HALOGEN SUBSTITUTED ALIPHATIC ACIDS, AND ANHYDRIDES THEREOF, SAID MIXTURE BEING SUBSTANTIALLY FREE OF FILM-FORMING COMPONENTS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |