US2505103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making plate glass
Assignee: PPG Industries Inc
•
Filing: 1943-02-26
•
Granted: 1950-04-25
•
Expires: 1963-02-26
Abstract
No abstract record available.
Inventors
- 👤 Manson L Devol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:56
CPC Classifications
C; C03; C03B; C03B15/00; C03B15/02; C03B15/08; C03B17/00; C03B17/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190409033A
Cited
US1591179A
Cited
US1657214A
Cited
US1831060A
Cited
US1827138A
Cited
US1821375A
Cited
US1891373A
Cited
US2094403A
Cited
US2243194A
Cited
US2336510A
Cited
US2387886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-24 | 1953-10-24 | 1954-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-24 | 1957-10-24 | 1958-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-24 | 1961-10-24 | 1962-04-25 | $7700.00 | Window Closed / Lapsed |