US3498803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass or glass-ceramic steam treatment method and article
Assignee: Corning Glass Works
•
Filing: 1967-04-13
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Granted: 1970-03-03
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Expires: 1987-04-13
Abstract
No abstract record available.
Inventors
- 👤 Stanley D Stookey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:28
CPC Classifications
C; C03; C03C; C03C23/00; C01; C01B; C01B33/00; C01B33/20; C01B33/32; C03C10/00; C03C10/0009; C03C11/00; C03C14/00; C03C14/006; C03C15/00; C03C3/00; C03C3/04; C03C3/076; C03C3/078; C03C4/00; C03C4/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2515275A
Cited
US2515943A
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US2651146A
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US2628160A
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US2684911A
Cited
US3275470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |