US2776867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production analysis apparatus
Assignee: Individual
•
Filing: 1952-06-28
•
Granted: 1957-01-08
•
Expires: 1972-06-28
Abstract
No abstract record available.
Inventors
- 👤 Boyan Edwin Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:50
CPC Classifications
G; G07; G07C; G07C1/00; G07C1/02; G07C1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1306631A
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US2307487A
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US1415499A
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US1765205A
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US2153317A
Cited
US2404975A
Cited
US2591124A
Cited
US2527405A
Cited
US2557196A
Cited
US2647033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |