US2938669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quality control device
Assignee: General Electric Co
•
Filing: 1953-07-06
•
Granted: 1960-05-31
•
Expires: 1973-07-06
Abstract
No abstract record available.
Inventors
- 👤 George E Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:18
CPC Classifications
G; G07; G07C; G07C3/00; G07C3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2040086A
Cited
US2698134A
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US2557070A
Cited
US2539758A
Cited
US2501058A
Cited
US2713457A
Cited
US2602586A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |