US3080232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for photographically producing electrical conductor patterns inside a hollow object
Assignee: Lockheed Martin Corp
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Filing: 1957-11-29
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Granted: 1963-03-05
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Expires: 1977-11-29
Abstract
No abstract record available.
Inventors
- 👤 Roger W Gilbody
- 👤 Clifford R Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:41
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H05; H05K; H05K3/00; H05K3/0073; H05K3/0082; H05K3/10; H05K3/102; H05K2201/00; H05K2201/01; H05K2201/0104; H05K2201/0108; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0347; H05K2201/09; H05K2201/09009; H05K2201/09018; H05K2203/00; H05K2203/05; H05K2203/0502; H05K2203/0522; H05K2203/0525; H05K2203/0548; H05K2203/056; H05K3/0002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A METHOD OF PROVIDING ELECTRICAL CONDUCTORS IN A DESIRED CONDUCTIVE PATTERN ON THE INSIDE SURFACE OF A HOLLOW OBJECT HAVING AN AREA TRANSPARENT TO A RADIANT ENERGY SOURCE WHICH COMPRISES: COATING SAID SURFACE WITH A PHOTO-RESIST SENSITIVE TO RADIANT ENERGY; DISPOSING A MODEL IMAGE BETWEEN SAID RADIANT ENERGY SOURCE AND SAID TRANSPARENT AREA; EXPOSING SAID PHOTO-RESIST COATING TO SAID RADIANT ENERGY PASSED THROUGH SAID MODEL IMAGE AND SAID TRANSPARENT AREA TO PRODUCE A LATENT IMAGE IN A DESIRED CONFIGURATION ON SAID PHOTO-RESIST COATING; REMOVING THE UNEXPOSED PHOTO-RESIST COATING TO LEAVE SAID SURFACE MARKED IN SAID DESIRED PATTERN; COATING SAID PATTERN WITH A COLLOIDAL SUSPENSION OF GRAPHITE; BAKING SAID OBJECT UNTIL SAID GRAPHITE PARTICLES ADHERING TO SAID PHOTO-RESIST COATING ARE FIXED; AND WASHING OFF ANY UNADHERING GRAPHITE PARTICLES.
Claim 2
Independent Claim
127 words
A METHOD OF PROVIDING ELECTRICAL CONDUCTORS IN A DESIRED CONDUCTIVE PATTERN ON THE INSIDE SURFACE OF A HOLLOW OBJECT HAVING AN AREA TRANSPARENT TO A RADIANT ENERGY SOURCE WHICH COMPRISES: COATING SAID SURFACE WITH A PHOTO-RESIST SENSITIVE TO RADIANT ENERGY; DISPOSING A MODEL IMAGE BETWEEN SAID RADIANT ENERGY SOURCE AND SAID TRANSPARENT AREA; EXPOSING SAID PHOTO-RESIST COATING TO SAID RADIANT ENERGY PASSED THROUGH SAID MODEL IMAGE AND SAID TRANSPARENT AREA TO PRODUCE A LATENT IMAGE IN A DESIRED CONFIGURATION ON SAID PHOTO-RESIST COATING; REMOVING THE UNEXPOSED PHOTO-RESIST COATING TO LEAVE SAID SURFACE MARKED IN SAID DESIRED PATTERN; COATING SAID PATTERN WITH A COLLOIDAL SUSPENSION OF GRAPHITE; BAKING SAID OBJECT UNTIL SAID GRAPHITE PARTICLES ADHERING TO SAID PHOTO-RESIST COATING ARE FIXED; AND WASHING OFF ANY UNADHERING GRAPHITE PARTICLES.
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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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |