US3424616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing coatings caused by storage of meal or flour in dry bulk form and particularly for preparing for re-use lined railroad hopper cars
Assignee: ROBERT W TOWNSEND
•
Filing: 1966-05-03
•
Granted: 1969-01-28
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Expires: 1986-05-03
Abstract
No abstract record available.
Inventors
- 👤 Robert W Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:20
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
A METHOD OF REMOVING A COATING SELECTED FROM THE GROUP CONSISTING OF RESIDUAL MEAL DEPOSITS, FLOUR DEPOSITS, AND MOLD, SAID COATING BEING CAUSED BY CONDENSATION ON THE INTERIOR SURFACES OF AN ENCLOSED COMPARTMENT WHICH HAS BEEN USED FOR THE TRANSPORTATION OR STORAGE OF MEAL OR FLOUR IN BULK FORM, COMPRISING DIRECTING ONTO THE INTERIOR COATED SURFACES A STREAM OF COMPRESSED AIR AND GRANULATED NON-TOXIC CELLULOSE MATERIAL.
References Cited (Backward Citations)
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Cited
US1934826A
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US2087694A
Cited
US2462982A
Cited
US2455514A
Cited
US2622047A
Cited
US2652662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |