US2947615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating the surfaces of glass containers
Assignee: OI Glass Inc
•
Filing: 1956-05-31
•
Granted: 1960-08-02
•
Expires: 1976-05-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Greene
- 👤 Jr Neill H Mccallum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:52
CPC Classifications
C; C03; C03C; C03C15/00; B; B65; B65B; B65B3/00; B65B3/003; B65B3/006; C03C21/00; C03C21/007; C03C23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE METHOD OF REDUCING THE ALKALINITY OF THE INTERIOR SURFACES OF A GLASS CONTAINER HAVING A RESTRICTED NECK OPENING COMPRISING THE STEPS OF INTRODUCING GASEOUS SULFUR DIOXIDE THROUGH SAID NECK OPENING, SEPARATELY INTRODUCING THROUGH SAID NECK OPENING AN OXIDIZING REAGENT SELECTED FROM THE GROUP CONSISTING OF MOISTURE WITH HYDROGEN PEROXIDE AND MOISTURE WITH SUBSTANTIALLY PURE OXYGEN, AND SUBJECTING SAID CONTAINER INTERIOR SURFACES, SULFUR DIOXIDE AND OXIDIZING REAGENT TO AN ELEVATED TEMPERATURE.
Claim 2
Independent Claim
71 words
THE METHOD OF REDUCING THE ALKALINITY OF THE INTERIOR SURFACES OF A GLASS CONTAINER HAVING A RESTRICTED NECK OPENING COMPRISING THE STEPS OF INTRODUCING GASEOUS SULFUR DIOXIDE THROUGH SAID NECK OPENING, SEPARATELY INTRODUCING THROUGH SAID NECK OPENING AN OXIDIZING REAGENT SELECTED FROM THE GROUP CONSISTING OF MOISTURE WITH HYDROGEN PEROXIDE AND MOISTURE WITH SUBSTANTIALLY PURE OXYGEN, AND SUBJECTING SAID CONTAINER INTERIOR SURFACES, SULFUR DIOXIDE AND OXIDIZING REAGENT TO AN ELEVATED TEMPERATURE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |