Patent US3493172A successfully refreshed from Google Patents.
US3493172A
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Assignee: ILIFFE NTP Inc
•
Filing: 1968-08-19
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Granted: 1970-02-03
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Expires: 1988-08-19
Abstract
No abstract record available.
Inventors
- 👤 Dennis N Bromage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:52
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/04; G06M1/045; G06M1/14; G06M1/146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US410242A
Cited
US3312395A
Cited
US1208486A
Cited
US1750456A
Cited
US2548837A
Cited
US2771694A
Cited
US3110116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |