Patent US2987482A successfully refreshed from Google Patents.
US2987482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making a solid dielectric
Assignee: Republic Aviation Corp
•
Filing: 1959-06-30
•
Granted: 1961-06-06
•
Expires: 1979-06-30
Abstract
No abstract record available.
Inventors
- 👤 Paul V Oliva
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:06
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/40; H01B3/002; H01B3/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
THE METHOD OF MAKING A CURED RESINOUS FOAM ADAPTED TO BE MOLDED INTO A LENS HAVING A PREDETERMINED DIELECTRIC CONSTANT CORRESPONDING TO ASSOCIATED ELECTRIAL ENERGY-TRANSMITTING AND RECEIVING EQUIPMENT CONSISTING ESSENTIALLY OF MIXING WITH EVERY 100 PARTS BY WEIGHT OF AN EPOXY RESIN FALLING WITHIN A MELTING POINT RANGE OF 40* TO 75*C. UP TO 50 PARTS BY WEIGHT OF CERAMIC PARTICLES, UP TO 30 PARTS BY WEIGHT OF METALLIC PARTICLES AND UP TO 6 PARTS BY WEIGHT OF A POLYVALENT METAL SOAP SUSPENSION AGENT AT AN ELEVATED TEMPERATURE ABOVE THE MELTING POINT OF THE EPOXY RESIN WHEREBY SAID PARTICLES ARE SCATTERED THROUGHOUT AND SEPARATED ONE FROM THE OTHER BY THE RESIN, SEPARATELY MIXING AT ROOM TEMPERATURE FOR EVERY 100 PARTS BY WEIGHT OF THE EPOXY RESIN FROM A FRACTIONAL PARTS UP TO 6 PARTS BY WEIGHT OF A LIQUID AROMATIC AMINE CURING AGENT WITH FROM A FRACTIONAL PART UP TO 6 PARTS BY WEIGHT OF AN AMINE SOAP WHEREBY A FOAMING REACTION OCCURS, COMBINING THE SEPARATE MIXES AFORESAID AT SAID ELEVATED TEMPERATURE PRIOR TO THE COMMENCEMENT OF SAID FOAMING REACTION, AND APPLYING ADDITIONAL HEAT TO THE COMBINED MIXES UNTIL FULL FOAMED AND CURED.
Claim 2
Independent Claim
193 words
THE METHOD OF MAKING A CURED RESINOUS FOAM ADAPTED TO BE MOLDED INTO A LENS HAVING A PREDETERMINED DIELECTRIC CONSTANT CORRESPONDING TO ASSOCIATED ELECTRIAL ENERGY-TRANSMITTING AND RECEIVING EQUIPMENT CONSISTING ESSENTIALLY OF MIXING WITH EVERY 100 PARTS BY WEIGHT OF AN EPOXY RESIN FALLING WITHIN A MELTING POINT RANGE OF 40* TO 75*C. UP TO 50 PARTS BY WEIGHT OF CERAMIC PARTICLES, UP TO 30 PARTS BY WEIGHT OF METALLIC PARTICLES AND UP TO 6 PARTS BY WEIGHT OF A POLYVALENT METAL SOAP SUSPENSION AGENT AT AN ELEVATED TEMPERATURE ABOVE THE MELTING POINT OF THE EPOXY RESIN WHEREBY SAID PARTICLES ARE SCATTERED THROUGHOUT AND SEPARATED ONE FROM THE OTHER BY THE RESIN, SEPARATELY MIXING AT ROOM TEMPERATURE FOR EVERY 100 PARTS BY WEIGHT OF THE EPOXY RESIN FROM A FRACTIONAL PARTS UP TO 6 PARTS BY WEIGHT OF A LIQUID AROMATIC AMINE CURING AGENT WITH FROM A FRACTIONAL PART UP TO 6 PARTS BY WEIGHT OF AN AMINE SOAP WHEREBY A FOAMING REACTION OCCURS, COMBINING THE SEPARATE MIXES AFORESAID AT SAID ELEVATED TEMPERATURE PRIOR TO THE COMMENCEMENT OF SAID FOAMING REACTION, AND APPLYING ADDITIONAL HEAT TO THE COMBINED MIXES UNTIL FULL FOAMED AND CURED.
References Cited (Backward Citations)
US2739134A
Cited
US2831820A
Cited
US2797201A
Cited
US2822448A
Cited
US2806509A
Cited
US2912382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |