US2335376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing multiple glazed units
Assignee: PPG Industries Inc
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Filing: 1941-02-27
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Granted: 1943-11-30
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Expires: 1961-02-27
Abstract
No abstract record available.
Inventors
- 👤 Elmer J Ballintine
- 👤 Frank F Painter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:36
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/663; E06B3/66309; E06B3/66342; E06B3/66357; C; C03; C03C; C03C17/00; C03C17/34; C03C17/36; C03C17/3602; C03C17/3607; C03C17/3642; C03C17/3649; C03C17/3681; C03C17/3697; C03C27/00; C03C27/06; C03C27/08; Y; Y10; Y10S; Y10S411/00; Y10S411/918
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) | 1946-11-29 | 1947-05-31 | 1947-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-11-29 | 1951-05-31 | 1951-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-11-29 | 1955-05-31 | 1955-11-30 | $7700.00 | Window Closed / Lapsed |