US3486871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead titanate-containing,crystallizable sealing glasses and method
Assignee: Corning Glass Works
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Filing: 1964-10-02
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Granted: 1969-12-30
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Expires: 1984-10-02
Abstract
No abstract record available.
Inventors
- 👤 Francis W Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:40
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/18; C08F214/22; B; B65; B65D; B65D31/00; B65D31/14; B65D31/142; C03; C03C; C03C10/00; C03C10/0054; C03C27/00; C03C3/00; C03C3/04; C03C3/062; C03C3/07; C03C3/072; C03C3/074; C03C3/0745; C03C8/00; C03C8/24; C03C8/245; C08F214/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2956219A
Cited
US2889952A
Cited
US2920971A
Cited
US3063198A
Cited
US3384508A
Cited
US3258350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |