US2902573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric glass working
Assignee: Corning Glass Works
•
Filing: 1957-04-24
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Granted: 1959-09-01
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Expires: 1977-04-24
Abstract
No abstract record available.
Inventors
- 👤 Edwin M Guyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:38
CPC Classifications
C; C03; C03B; C03B29/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1984488A
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US2040215A
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US2046117A
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US2306054A
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US2186647A
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US2439754A
Cited
US2428969A
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US2472851A
Cited
US2633522A
Cited
GB751196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |