Patent US2369741A successfully refreshed from Google Patents.
US2369741A
Expired / Lapsed
US
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Transmission film for glass and method for producing same
Assignee: Bausch and Lomb Inc
•
Filing: 1940-11-08
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Granted: 1945-02-20
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Expires: 1960-11-08
Abstract
No abstract record available.
Inventors
- 👤 Frank L Jones
- 👤 Theodore J Zak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:00
CPC Classifications
G; G02; G02B; G02B1/00; G02B1/10; G02B1/11; G02B1/113; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/261; Y10T428/31; Y10T428/315
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-02-20 | 1948-08-21 | 1949-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-20 | 1952-08-21 | 1953-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-20 | 1956-08-21 | 1957-02-20 | $7700.00 | Window Closed / Lapsed |