Patent US2631498A successfully refreshed from Google Patents.
US2631498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prismatic antiglare rearview mirror device
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1951-07-09
•
Granted: 1953-03-17
•
Expires: 1971-07-09
Abstract
No abstract record available.
Inventors
- 👤 Dwight W Barkley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:07
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/08; B; B60; B60R; B60R1/00; B60R1/02; B60R1/08; B60R1/083; B60R1/086
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1808740A
Cited
US1949138A
Cited
GB362622A
Cited
US2321987A
Cited
US2430452A
Cited
US2397947A
Cited
US2455818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |