Patent US2740327A successfully refreshed from Google Patents.
US2740327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for detachably securing parts of ophthalmic mountings
Assignee: Bausch and Lomb Inc
•
Filing: 1952-10-11
•
Granted: 1956-04-03
•
Expires: 1972-10-11
Abstract
No abstract record available.
Inventors
- 👤 Raymond F E Stegeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:50
CPC Classifications
G; G02; G02C; G02C1/00; G02C1/06; G02C1/08; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/972
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |