US2988682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line follower servosystem
Assignee: OI Glass Inc
•
Filing: 1958-03-10
•
Granted: 1961-06-13
•
Expires: 1978-03-10
Abstract
No abstract record available.
Inventors
- 👤 Donald F Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:21
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/12; G05B19/122; G05B2219/00; G05B2219/20; G05B2219/23; G05B2219/23202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2354391A
Cited
US2529490A
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US2744224A
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US2835858A
Cited
US2838683A
Cited
US2837706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |