Patent US3420693A successfully refreshed from Google Patents.
US3420693A
Expired / Lapsed
US
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Glass having dual protective coatings thereon and a method for forming such coatings
Assignee: Ball Corp
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Filing: 1964-06-05
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Granted: 1969-01-07
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Expires: 1984-06-05
Abstract
No abstract record available.
Inventors
- 👤 Addison B Scholes
- 👤 John E Pickard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:03
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/34; C03C17/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2995533A
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US2577936A
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US2595800A
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US3041202A
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US2813045A
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US3019135A
Cited
USRE25767E
Cited
US2965596A
Cited
US3199966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |