US3505580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic line follower for an x-y motor control
Assignee: Milwaukee Chaplet and Mfg Co Inc
•
Filing: 1965-09-15
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Granted: 1970-04-07
•
Expires: 1985-09-15
Abstract
No abstract record available.
Inventors
- 👤 Robert H Ahrens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:11
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/12; G05B19/16; G05B2219/00; G05B2219/20; G05B2219/23; G05B2219/23202
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) | 1973-04-06 | 1973-10-06 | 1974-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-06 | 1977-10-06 | 1978-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-06 | 1981-10-06 | 1982-04-07 | $7700.00 | Window Closed / Lapsed |