US3547526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical beam cross-section converter
Assignee: Kollsman Instrument Corp
•
Filing: 1967-10-26
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Granted: 1970-12-15
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Expires: 1987-10-26
Abstract
No abstract record available.
Inventors
- 👤 William P Devereux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:54
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/09; G02B27/0927; G02B27/0938; G02B27/095; G02B27/0972; G02B27/10; G02B27/12; G02B27/126; G02B3/00; G02B5/00; G02B5/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB435222A
Cited
US2317875A
Cited
US2642775A
Cited
US2881654A
Cited
US2882784A
Cited
US3419321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |