US2482598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflecting surface replica
Assignee: Bausch and Lomb Inc
•
Filing: 1946-03-22
•
Granted: 1949-09-20
•
Expires: 1966-03-22
Abstract
No abstract record available.
Inventors
- 👤 Paul A Roos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:00
CPC Classifications
G; G02; G02B; G02B21/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2380447A
Cited
US818966A
Cited
US1744642A
Cited
GB358378A
Cited
US2022639A
Cited
US2232551A
Cited
US2221890A
Cited
US2239263A
Cited
US2387581A
Cited
US2282643A
Cited
US2370562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-19 | 1953-03-21 | 1953-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-19 | 1957-03-21 | 1957-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-19 | 1961-03-21 | 1961-09-20 | $7700.00 | Window Closed / Lapsed |