US3421059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric remote control system for supervising a variable physical magnitude
Assignee: Individual
•
Filing: 1964-11-24
•
Granted: 1969-01-07
•
Expires: 1984-11-24
Abstract
No abstract record available.
Inventors
- 👤 Tetsuo Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:52
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/285; H02P7/2855; G; G05; G05B; G05B1/00; G05B1/01; G05B1/02; G05D; G05D23/00; G05D23/19; G05D23/275; G05D23/27535; G05D23/27541; G05D7/00; G05D7/06; G05D7/0617; G05D7/0629; G05D7/0635; G05D9/00; G05D9/12
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) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |