US3434488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlling the proportioning of blended fluids
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1965-03-16
•
Granted: 1969-03-25
•
Expires: 1985-03-16
Abstract
No abstract record available.
Inventors
- 👤 Frank D F Talbot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:58
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/16; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US933577A
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US2072384A
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US2891401A
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US2866602A
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US3250218A
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US3029829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |