US3088833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing glass
Assignee: OI Glass Inc
•
Filing: 1960-06-06
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Granted: 1963-05-07
•
Expires: 1980-06-06
Abstract
No abstract record available.
Inventors
- 👤 Perry P Pirooz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:19
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/062; C03C3/07; C03C3/072; C03C3/074; C03C27/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A SEALING GLASS COMPOSITION HAVING A FIBER SOFTENING POINT BELOW 600$C., COEFFIENENT OF EXPANSION (0-425$ C.) IN THE RANGE FROM 45*X10-**7 TO 65X10-**7, AND CONSISTING ESSENTIALLY OF 11 TO 29 WEIGHT PERCENT PBO, 18 TO 32 WEIGHT PERCENT B2O3, TO 46 WEIGHT PERCENT ZNO, 7 TO 14 WEIGHT PERCENT SIO2, AND 8 TO 16 WEIGHT PERCENT CUO.
Claim 2
Dependent Claim
57 words
A SEALING GLASS COMPOSITION HAVING A FIBER SOFTENING POINT BELOW 600$C., COEFFIENENT OF EXPANSION (0-425$ C.) IN THE RANGE FROM 45*X10-**7 TO 65X10-**7, AND CONSISTING ESSENTIALLY OF 11 TO 29 WEIGHT PERCENT PBO, 18 TO 32 WEIGHT PERCENT B2O3, TO 46 WEIGHT PERCENT ZNO, 7 TO 14 WEIGHT PERCENT SIO2, AND 8 TO 16 WEIGHT PERCENT CUO.
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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |