US3239761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discrete address communication system with random access capabilities
Assignee: Lockheed Martin Corp
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Filing: 1961-05-02
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Granted: 1966-03-08
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Expires: 1981-05-02
Abstract
No abstract record available.
Inventors
- 👤 Goode Mckay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:44
CPC Classifications
H; H04; H04W; H04W88/00; H04W88/18; H04W88/185; H04W88/187; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/50; H04B14/00; H04B14/02; H04B14/026; H04J; H04J3/00; H04J3/16; H04J3/1676
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2369622A
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US2530957A
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US2635228A
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US2779933A
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US2937238A
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US2955279A
Cited
US3141928A
Cited
US3160711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |