US2706876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass grinding
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1954-06-28
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Granted: 1955-04-26
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Expires: 1974-06-28
Abstract
No abstract record available.
Inventors
- 👤 William C Levengood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:16
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/34; B24D3/346; C; C03; C03C; C03C17/00; C03C17/22; C03C2217/00; C03C2217/20; C03C2217/28; C03C2217/284; C03C2217/286; C03C2218/00; C03C2218/10; C03C2218/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
THE METHOD OF IMPROVING THE THERMAL SHOCK RESISTANCE OF GLASS ARTICLES, INCLUDING THE STEP OF APPLYING A SOLUTION OF CUPRIC CHLORIDE TO SAID ARTICLE WHILE GRIND ING THE EDGE PORTIONS THEREOF.
Claim 2
Independent Claim
31 words
THE METHOD OF IMPROVING THE THERMAL SHOCK RESISTANCE OF GLASS ARTICLES, INCLUDING THE STEP OF APPLYING A SOLUTION OF CUPRIC CHLORIDE TO SAID ARTICLE WHILE GRIND ING THE EDGE PORTIONS THEREOF.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |