US2886795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for generating a family of curves from a single master control element
Assignee: Dresser Industries Inc
•
Filing: 1956-05-03
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Granted: 1959-05-12
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Expires: 1976-05-03
Abstract
No abstract record available.
Inventors
- 👤 Russell S Thatcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:02
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V1/36; G01V1/362
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2243730A
Cited
US2440971A
Cited
US2604955A
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US2800639A
Cited
US2825885A
Cited
US2765455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |