Patent US2345336A successfully refreshed from Google Patents.
US2345336A
Expired / Lapsed
US
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Bullet-resisting glass
Assignee: PPG Industries Inc
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Filing: 1940-12-28
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Granted: 1944-03-28
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Expires: 1960-12-28
Abstract
No abstract record available.
Inventors
- 👤 John H Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:19
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/10045; B32B17/10165; B32B17/10293; B32B17/10302; F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0407; F41H5/26; F41H5/263
Claims Analysis
Total Claims: 0
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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) | 1947-03-28 | 1947-09-27 | 1948-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-03-28 | 1951-09-27 | 1952-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-03-28 | 1955-09-27 | 1956-03-28 | $7700.00 | Window Closed / Lapsed |