Patent US3330120A successfully refreshed from Google Patents.
Patent US2996120A successfully refreshed from Google Patents.
US2996120A
Expired / Lapsed
US
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Fluid flow transducer
Assignee: Individual
•
Filing: 1958-12-05
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Granted: 1961-08-15
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Expires: 1978-12-05
Abstract
No abstract record available.
Inventors
- 👤 John L Mcgregor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:08
CPC Classifications
F; F03; F03D; F03D1/00; F03D1/06; F03D1/0608; F04; F04D; F04D29/00; F04D29/18; F04D29/22; F04D29/2205; F04D29/2222; F04D29/2233; F04D29/26; F04D29/28; F04D29/281; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |