US2871623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bending glass
Assignee: PPG Industries Inc
•
Filing: 1954-12-22
•
Granted: 1959-02-03
•
Expires: 1974-12-22
Abstract
No abstract record available.
Inventors
- 👤 Herman R Marini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:59
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/02; C03B23/023; C03B23/025; C03B23/027; C03B23/0258; Y; Y10; Y10S; Y10S264/00; Y10S264/46; Y10S264/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1910549A
Cited
US2292684A
Cited
US2450297A
Cited
US2314325A
Cited
US2389360A
Cited
US2691854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |