Patent US3208839A successfully refreshed from Google Patents.
US3208839A
Expired / Lapsed
US
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Method of shaping a glass article
Assignee: Corning Glass Works
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Filing: 1961-02-27
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Granted: 1965-09-28
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Expires: 1981-02-27
Abstract
No abstract record available.
Inventors
- 👤 Martin E Nordberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:17
CPC Classifications
C; C03; C03B; C03B40/00; C03B40/02; C03B40/033; C03B23/00; C03B23/02; C03B23/023; C03B23/0235; C03B23/03; C03B23/0307; C03B29/00; C03B29/02; C03B29/025; C03B40/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
IN THE METHOD OF CONFORMING AT LEAST ONE GLASS BODY BY HEATING WHILE IN CONTACT WITH MEANS PRODUCING REQUISITE DEFORMATION THEREIN, THE IMPROVEMENT WHICH COMPRISES THE STEP OF APPLYING TO ALL CONTACTING GLASS SURFACES AN ADHERENT THIN CONTINUOUS UNIFORM FILM OF COLLOIDAL REFRACTORY METALLIC OXIDE HAVING A MELTING TEMPERATURE HIGHER THAN THE SOFTENING POINT OF THE GLASS OF SAID BODY.
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |