US2698799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for puffing cereals
Assignee: Quaker Oats Co
•
Filing: 1950-06-02
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Granted: 1955-01-04
•
Expires: 1970-06-02
Abstract
No abstract record available.
Inventors
- 👤 Eldor G Rupp
- 👤 Walter H Proescholdt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:45
CPC Classifications
A; A23; A23L; A23L7/00; A23L7/10; A23L7/161; A23L7/174; A23L7/178
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PROCESS FOR PUFFING CEREAL GRAINS WHICH COMPRISES PASSING A HEATED DRYING GAS THROUGH A MASS OF SAID GRAINS WHEREBY TO HEAT SAID GRAINS TO A TEMPERATURE BETWEEN ABOUT 212*F. AND ABOUT 350*F. FOR A TIME INSUFFICIENT SUBSTANTIALLY TO SCORCH OR DISCOLOR SAID GRAINS, DISCHARGING SAID GRAINS WITHOUT COOLING TO A TEMPERATURE SUBSTANTIALLY BELOW ABOUT 212*F. TO A STEAM PUFFING ZONE, AND THEN EXPLOSIVELY PUFFING THE GRAINS.
Claim 2
Dependent Claim
67 words
A PROCESS FOR PUFFING CEREAL GRAINS WHICH COMPRISES PASSING A HEATED DRYING GAS THROUGH A MASS OF SAID GRAINS WHEREBY TO HEAT SAID GRAINS TO A TEMPERATURE BETWEEN ABOUT 212*F. AND ABOUT 350*F. FOR A TIME INSUFFICIENT SUBSTANTIALLY TO SCORCH OR DISCOLOR SAID GRAINS, DISCHARGING SAID GRAINS WITHOUT COOLING TO A TEMPERATURE SUBSTANTIALLY BELOW ABOUT 212*F. TO A STEAM PUFFING ZONE, AND THEN EXPLOSIVELY PUFFING THE GRAINS.
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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) | 1958-01-03 | 1958-07-05 | 1959-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-03 | 1962-07-05 | 1963-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-03 | 1966-07-05 | 1967-01-04 | $7700.00 | Window Closed / Lapsed |