US3450995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System using shift register,ring counter and logic circuitry for controlling operation in predetermined sequence
Assignee: Duracell Inc USA
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Filing: 1966-02-28
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Granted: 1969-06-17
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Expires: 1986-02-28
Abstract
No abstract record available.
Inventors
- 👤 James A Hirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:31
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/07; G03; G03G; G03G21/00; G03G21/14; G05B2219/00; G05B2219/20; G05B2219/25; G05B2219/25267
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) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |