US3505047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for electrochemically modification of glass
Assignee: AGC Glass Europe SA
•
Filing: 1966-05-04
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Granted: 1970-04-07
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Expires: 1986-05-04
Abstract
No abstract record available.
Inventors
- 👤 Emile Plumat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:13
CPC Classifications
C; C03; C03B; C03B15/00; C03B15/02; C03C; C03C21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2596515A
Cited
US3193365A
Cited
BE620787A
Cited
US3393987A
Cited
US3337322A
Cited
US3218220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-06 | 1973-10-06 | 1974-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-06 | 1977-10-06 | 1978-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-06 | 1981-10-06 | 1982-04-07 | $7700.00 | Window Closed / Lapsed |