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US3434787A
Expired / Lapsed
US
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Double axes interferometer
Assignee: Optomechanisms Inc
•
Filing: 1965-11-15
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Granted: 1969-03-25
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Expires: 1985-11-15
Abstract
No abstract record available.
Inventors
- 👤 Anwar K Chitayat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:42
CPC Classifications
G; G01; G01B; G01B9/00; G01B9/02; G01B9/02015; G01B9/02027; G01B9/02017; G01B9/02021; G01B2290/00; G01B2290/45; G01B2290/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2604004A
Cited
US3225644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |