Patent US3491718A successfully refreshed from Google Patents.
US3491718A
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US
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System for controlling sequential operations
Assignee: EBBERT ENG Co
•
Filing: 1968-07-12
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Granted: 1970-01-27
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Expires: 1988-07-12
Abstract
No abstract record available.
Inventors
- 👤 Robert J Ebbert
- 👤 William R Mcbride
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:56
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/02; H01H43/04; H01H43/06; B; B05; B05B; B05B12/00; B05B12/08; B05B12/12; B05B12/122; B05B13/00; B05B13/02; B05B13/0221; G; G05; G05B; G05B19/00; G05B19/43; G05B19/44; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2675778A
Cited
US2900950A
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US3013445A
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US2971492A
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US3057224A
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US3255037A
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US3151500A
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US3274852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |