US2417898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alabaster glass
Assignee: Corning Glass Works
•
Filing: 1945-04-30
•
Granted: 1947-03-25
•
Expires: 1965-04-30
Abstract
No abstract record available.
Inventors
- 👤 William H Armistead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:53
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/062; C03C3/07; C03C3/072; C03C3/076; C03C3/102; C03C3/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1529259A
Cited
US2100391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-24 | 1950-09-23 | 1951-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-24 | 1954-09-23 | 1955-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-24 | 1958-09-23 | 1959-03-25 | $7700.00 | Window Closed / Lapsed |