US3440522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductive plastic overlay for target display
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1967-04-03
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Granted: 1969-04-22
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Expires: 1987-04-03
Abstract
No abstract record available.
Inventors
- 👤 James A Kruse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:54
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/041; G06F3/045; G01; G01B; G01B7/00; G01B7/004; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G06V; G06V10/00; G06V10/10; G06V10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2364728A
Cited
US2849707A
Cited
US2891244A
Cited
US3102926A
Cited
US3106707A
Cited
US3217320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |