US2497515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glazing construction
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1945-07-07
•
Granted: 1950-02-14
•
Expires: 1965-07-07
Abstract
No abstract record available.
Inventors
- 👤 John P Pearse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:17
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/54; E06B3/56; E06B3/5481; Y; Y10; Y10S; Y10S52/00; Y10S52/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1073805A
Cited
US1258300A
Cited
US1330605A
Cited
US1851201A
Cited
US1998671A
Cited
US1999208A
Cited
US2077807A
Cited
US2235681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |