Patent US1813835A successfully refreshed from Google Patents.
Patent US3523739A successfully refreshed from Google Patents.
US3523739A
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Light meter for high powered repetitive light flashes
Assignee: Bank of America Illinois
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Filing: 1965-12-22
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Granted: 1970-08-11
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Expires: 1985-12-22
Abstract
No abstract record available.
Inventors
- 👤 Louis L Weisglass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:07
CPC Classifications
G; G01; G01R; G01R29/00; G01J; G01J1/00; G01J1/42; G01J1/44; G01J1/46; Y; Y10; Y10S; Y10S136/00; Y10S136/291
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-10 | 1974-02-09 | 1974-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-10 | 1978-02-09 | 1978-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-10 | 1982-02-09 | 1982-08-11 | $7700.00 | Window Closed / Lapsed |