US2721701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quality monitoring apparatus
Assignee: General Electric Co
•
Filing: 1951-11-13
•
Granted: 1955-10-25
•
Expires: 1971-11-13
Abstract
No abstract record available.
Inventors
- 👤 Robert A Hardesty
- 👤 George W Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:29
CPC Classifications
G; G07; G07C; G07C3/00; G07C3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2203717A
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US2295968A
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US2351405A
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US2312342A
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US2346869A
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US2428080A
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US2488754A
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US2531448A
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US2556374A
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US2530351A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-24 | 1959-04-25 | 1959-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-24 | 1963-04-25 | 1963-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-24 | 1967-04-25 | 1967-10-25 | $7700.00 | Window Closed / Lapsed |