US3514176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High resolution holographic beam reversal technique
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1967-06-20
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Granted: 1970-05-26
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Expires: 1987-06-20
Abstract
No abstract record available.
Inventors
- 👤 Robert E Brooks
- 👤 Lee O Heflinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:44
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/04; G03H1/22; G03H1/0402; G03H2001/0413; G03H2210/00; G03H2210/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |