Patent US3501840A successfully refreshed from Google Patents.
US3501840A
Expired / Lapsed
US
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Measuring device having sag compensation means
Assignee: Warner and Swasey Co
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Filing: 1966-03-17
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Granted: 1970-03-24
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Expires: 1986-03-17
Abstract
No abstract record available.
Inventors
- 👤 Frederick S Schiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:27
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/0011; G01B5/0016; B; B23; B23K; B23K37/00; B23K37/04; B23Q; B23Q11/00; B23Q11/001; B23Q11/0014; B25; B25H; B25H7/00; B25H7/04
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) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |