US2942519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereomicroscope casing
Assignee: Bausch and Lomb Inc
•
Filing: 1958-04-21
•
Granted: 1960-06-28
•
Expires: 1978-04-21
Abstract
No abstract record available.
Inventors
- 👤 Olin W Boughton
- 👤 Kenneth D Maier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:21
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/18; G02B21/20; G02B21/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1637563A
Cited
US1962834A
Cited
US2165341A
Cited
US2406526A
Cited
US2515104A
Cited
US2720817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |