US3463572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical phase modulation apparatus
Assignee: Applied Biosystems Inc
•
Filing: 1966-10-21
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Granted: 1969-08-26
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Expires: 1986-10-21
Abstract
No abstract record available.
Inventors
- 👤 Kendall Preston Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:55
CPC Classifications
G; G02; G02B; G02B26/00; G02B26/06; G09; G09F; G09F9/00; G09F9/30; G09F9/37; G09F9/372
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2281637A
Cited
US2289205A
Cited
GB778376A
Cited
US3001447A
Cited
US3137762A
Cited
US3322485A
Cited
US3306160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-25 | 1973-02-24 | 1973-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-25 | 1977-02-24 | 1977-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-25 | 1981-02-24 | 1981-08-26 | $7700.00 | Window Closed / Lapsed |