US2953772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Code communication system
Assignee: SPX Technologies Inc
•
Filing: 1956-02-06
•
Granted: 1960-09-20
•
Expires: 1976-02-06
Abstract
No abstract record available.
Inventors
- 👤 Nelson B Coley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:04
CPC Classifications
B; B61; B61L; B61L7/00; B61L7/06; B61L7/08; B61L7/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1207016A
Cited
US1689294A
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US2129183A
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US2230859A
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US1995272A
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US2126210A
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US2259561A
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US2389275A
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US2373134A
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US2418415A
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US2561722A
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US2453281A
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US2759429A
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US2626314A
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US2675537A
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US2768335A
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US2698425A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |