US3433940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber optics instrument lighting
Assignee: Stewart Warner Corp
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Filing: 1967-06-07
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Granted: 1969-03-18
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Expires: 1987-06-07
Abstract
No abstract record available.
Inventors
- 👤 Edgar R Baez
- 👤 Walter M Heinke
- 👤 Alfred Nelken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:22
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0005; G02B6/0008; B; B60; B60Q; B60Q3/00; B60Q3/10; B60Q3/14; B60Q3/60; B60Q3/62; B60Q3/64
Claims Analysis
Total Claims: 0
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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) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |