US3475150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of tempering and imparting a protective scratch-resistant coating to a glass article
Assignee: OI Glass Inc
•
Filing: 1966-06-09
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Granted: 1969-10-28
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Expires: 1986-06-09
Abstract
No abstract record available.
Inventors
- 👤 Frederic L Bishop
- 👤 Eugene M Cook
- 👤 Jack M Florence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:18
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/245; C03B; C03B27/00; C03B27/04; C03B27/06; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/211; C03C2217/212; C03C2218/00; C03C2218/10; C03C2218/15; C03C2218/152
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |