Patent US3045174A successfully refreshed from Google Patents.
Patent US2802199A successfully refreshed from Google Patents.
US2802199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Code communication system
Assignee: SPX Technologies Inc
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Filing: 1955-07-11
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Granted: 1957-08-06
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Expires: 1975-07-11
Abstract
No abstract record available.
Inventors
- 👤 Reginald F Albrighton
- 👤 Nelson B Coley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:22
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)
US2619529A
Cited
US1714969A
Cited
US2174291A
Cited
US2176040A
Cited
US2135295A
Cited
US2459494A
Cited
US2634401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |