US3408556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tachometer
Assignee: Potter Instrument Co Inc
•
Filing: 1965-10-20
•
Granted: 1968-10-29
•
Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 Gabor Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:34
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/22; H02K19/24; G; G01; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/46; G01P3/48; G01P3/481; G01P3/488; H02K39/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1234914A
Cited
US1898728A
Cited
US1996947A
Cited
GB521617A
Cited
GB577038A
Cited
US2945141A
Cited
US3264504A
Cited
US3217194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |