US1996387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet glass apparatus
Assignee: PPG Industries Inc
•
Filing: 1934-06-28
•
Granted: 1935-04-02
•
Expires: 1954-06-28
Abstract
No abstract record available.
Inventors
- 👤 Owen William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:01
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/02; C03B33/0215; B; B65; B65G; B65G49/00; B65G49/05; B65G49/06; B65G49/067; B65G2249/00; B65G2249/04; B65G2249/045; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/307; Y10T225/321; Y10T225/325
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) | 1938-04-01 | 1938-10-01 | 1939-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-04-01 | 1942-10-01 | 1943-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-04-01 | 1946-10-01 | 1947-04-02 | $7700.00 | Window Closed / Lapsed |