Patent US2327918A successfully refreshed from Google Patents.
US2327918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat rejecting glass
Assignee: PPG Industries Inc
•
Filing: 1941-01-23
•
Granted: 1943-08-24
•
Expires: 1961-01-23
Abstract
No abstract record available.
Inventors
- 👤 Robert A Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:55
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10761; B32B17/10009; B32B17/10036; B32B17/10045; B32B17/10165; B32B17/10174; C; C03; C03C; C03C17/00; C03C17/02; E; E06; E06B; E06B7/00; E06B7/28; Y; Y10; Y10S; Y10S165/00; Y10S165/904
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1946-08-23 | 1947-02-22 | 1947-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-23 | 1951-02-22 | 1951-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-23 | 1955-02-22 | 1955-08-24 | $7700.00 | Window Closed / Lapsed |