US2428645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectacle mounting with screw locking means
Assignee: Bausch and Lomb Inc
•
Filing: 1944-05-27
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Granted: 1947-10-07
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Expires: 1964-05-27
Abstract
No abstract record available.
Inventors
- 👤 Carl L Bausch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:19
CPC Classifications
G; G02; G02C; G02C1/00; G02C1/02; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/947; Y10T; Y10T24/00; Y10T24/44; Y10T24/44966; Y10T24/44974; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US329615A
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US1200072A
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US1726628A
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US1982047A
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US2071045A
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US2101476A
Cited
US2351057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-06 | 1951-04-07 | 1951-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-06 | 1955-04-07 | 1955-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-06 | 1959-04-07 | 1959-10-07 | $7700.00 | Window Closed / Lapsed |