US2988852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of thermally sealing hollow glass articles at minimal temperatures
Assignee: OI Glass Inc
•
Filing: 1957-12-11
•
Granted: 1961-06-20
•
Expires: 1977-12-11
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:45
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/40; C; C03; C03B; C03B23/00; C03B23/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2736143A
Cited
US2031660A
Cited
US2389360A
Cited
US2649993A
Cited
US2694273A
Cited
US2648179A
Cited
US2775028A
Cited
US2688824A
Cited
US2784462A
Cited
US2894294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |