US3053993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic trigger devices
Assignee: International Standard Electric Corp
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Filing: 1959-09-17
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Granted: 1962-09-11
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Expires: 1979-09-17
Abstract
No abstract record available.
Inventors
- 👤 Barber Donald Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:06
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/38; H04L25/40; H04L25/49; H04L25/4906; H03; H03K; H03K17/00; H03K17/51; H03K17/80; H03K17/82; H03K23/00; H03K23/76; H03K3/00; H03K3/02; H03K3/45; H03M; H03M1/00; H03M1/12; H03M1/34; H03M1/36; H03M1/361; H03M5/00; H03M7/00; H03M7/14; H03M7/16; H03M9/00; H04B; H04B14/00; H04B14/02; H04B14/04; H04B14/042; H04B14/044; H04B14/046; H04B14/048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |