US3400368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pattern sensing devices
Assignee: EMI Ltd
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Filing: 1963-11-26
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Granted: 1968-09-03
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Expires: 1983-11-26
Abstract
No abstract record available.
Inventors
- 👤 Christopher Archibald Gord May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:10
CPC Classifications
G; G11; G11C; G11C27/00; G11C27/02; G06; G06V; G06V10/00; G06V10/40; G06V10/44; G06V10/443
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |