US3116915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for heating fluids
Assignee: Midland Ross Corp
•
Filing: 1961-01-06
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Granted: 1964-01-07
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Expires: 1981-01-06
Abstract
No abstract record available.
Inventors
- 👤 John D Nesbitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:49
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/10; F24H1/107
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
A METHOD OF HEATING A STREAM OF FLUID FLOWING THROUGH A DUCT COMPRISING THE STEPS OF: STABILIZING A COMBUSTIBLE REACTION BETWEEN STREAMS OF FUEL AND COMBUSTION AIR AT A POINT EXTERNAL TO THE DUCT, PASSING THE PRODUCTS FROM THE COMBUSTIBLE REACTION INTO THE DUCT IN AN ENCLOSED STREAM, DISCHARGING THE PRODUCTS FROM THE ENCLOSED STREAM INTO THE STREAM OF FLUID FLOWING THROUGH THE DUCT IN A PLURALITY OF NON-CONTIGUOUS BRANCH STREAMS, THE PLURALITY OF STREAMS INTO CONTACT WITH ONE OF THE NONCONTIGUOUS BRANCH STREAMS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |