Patent US3202543A successfully refreshed from Google Patents.
US3202543A
Expired / Lapsed
US
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Method of forming a thin film grid
Assignee: International Business Machines Corp
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Filing: 1962-06-01
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Granted: 1965-08-24
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Expires: 1982-06-01
Abstract
No abstract record available.
Inventors
- 👤 Rudolf E Thun
- 👤 Edward S Wajda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:55
CPC Classifications
H; H10; H10W; H10W20/00; H10W20/40; C; C23; C23C; C23C14/00; C23C14/04; C23C14/042; H01; H01J; H01J19/00; H01J19/28; H01J19/30; H10D; H10D99/00; H10P; H10P95/00; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
55 words
A METHOD FOR MAKING A METALLIC GRID COMPRISING THE STEPS OF: SPREADING AN AQUEOUS DISPERSION OF SOLVENT AND OF POLYSTYRENE SPERES ONTO A SUITABLE SUBSTRATE, SAID POLYSTYRENE SPHERES HAVING A DIAMETER OF THE ORDER OF 1000 A. OR LESS; EVAPORATING SAID SOLVENT SO AS TO FORM AN APERTURED MASK OF POLYSTYRENE SPHERES ONTO SAID SUBSTRATE;
References Cited (Backward Citations)
US2815462A
Cited
US2906637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |