US2908593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical capacitors
Assignee: Individual
•
Filing: 1952-04-17
•
Granted: 1959-10-13
•
Expires: 1972-04-17
Abstract
No abstract record available.
Inventors
- 👤 Edward S Naidus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:29
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/20; H01G4/206; C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/48; C04B35/50; C04B35/51
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A METHOD OF PROVIDING THE SURFACES OF THE METAL ELECTRODES OF ELECTRICAL CAPACITORS WITH ADHERENT DIELECTRIC COATINGS INCLUDING MOLECULARLY DISPERSED TITANIA, WHICH COMPRISES THE STEPS OF APPLYING TO A SURFACE OF THE ELECTRODE A SOLUTION OF AN ORGANO TITANATE WHICH IS HYDROLYZABLE ON CONTACT WITH ATMOSPHERIC MOISTURE, IN A VOLATILE ORGANIC SOLVENT, EVAPORATING OFF THE SOLVENT AT ROOM TEMERATURE IN ATMOSPHERIR AIR OF NORMAL MOISTURE CONTENT TO AT LEAST INITIATE PARTIAL HYDROLYSIS OF THE ORGANO TITANATE, AND HEATING THE RESIDUE AT APPROXIMATELY 300*C. FOR AT LEAST ONE-HALF HOUR IN AIR.
Claim 2
Independent Claim
90 words
A METHOD OF PROVIDING THE SURFACES OF THE METAL ELECTRODES OF ELECTRICAL CAPACITORS WITH ADHERENT DIELECTRIC COATINGS INCLUDING MOLECULARLY DISPERSED TITANIA, WHICH COMPRISES THE STEPS OF APPLYING TO A SURFACE OF THE ELECTRODE A SOLUTION OF AN ORGANO TITANATE WHICH IS HYDROLYZABLE ON CONTACT WITH ATMOSPHERIC MOISTURE, IN A VOLATILE ORGANIC SOLVENT, EVAPORATING OFF THE SOLVENT AT ROOM TEMERATURE IN ATMOSPHERIR AIR OF NORMAL MOISTURE CONTENT TO AT LEAST INITIATE PARTIAL HYDROLYSIS OF THE ORGANO TITANATE, AND HEATING THE RESIDUE AT APPROXIMATELY 300*C. FOR AT LEAST ONE-HALF HOUR IN AIR.
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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) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |