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US2855471A
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Assignee: Electronic Specialty Co
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Filing: 1957-06-19
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Granted: 1958-10-07
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Expires: 1977-06-19
Abstract
No abstract record available.
Inventors
- 👤 Rollin H Koontz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:29
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/10; H01P1/12; H01P1/127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2163919A
Cited
US2702877A
Cited
US2745917A
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US2760016A
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US2769068A
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US2766355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |