US3261746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid absorbent and vapor releasant block
Assignee: Individual
•
Filing: 1962-12-05
•
Granted: 1966-07-19
•
Expires: 1982-12-05
Abstract
No abstract record available.
Inventors
- 👤 David W M Copley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:12
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/24; A; A47; A47K; A47K5/00; A47K5/06; A47K5/12; A47K5/1201; A61; A61L; A61L9/00; A61L9/01; A61L9/015; A61L9/04; A61L9/042; A61L9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A LIQUID ABSORBENT AND VAPOUR RELEASANT BLOCK OF COMPRESSED CELLULOSE ACETATE GRANULES FORMED BY THE METHOD OF MIXING 1360 PARTS BY WEIGHT OF CELLULOSE ACETATE GRANULES WITH FROM 30 TO 1400 PARTS BY WEIGHT OF ETHYLENE GLYCOL MONOETHYL ETHER, SAID CELLULOSE ACETATE GRANULES HAVING A MEAN MINIMUM DIMENSION OF NOT LESS THAN 0.5 MILLIMETER, ADDING FROM 20 TO 400 PARTS BY WEIGHT OF CALCIUM CARBONATE AND FURTHER MIXING, TRANSFERRING TO A PELLETING PRESS AND PRESSING INTO A BLOCK HAVING FROM 2% TO 20% POROSITY, OVEN DRYING SAID BLOCK, IMERSING SAID BLOCK IN AN OIL BASED PERFUME LIQUID, AND REMOVING SURPLUS PREFUME LIQUID FROM THE BLOCK SURFACE BY SPIN DRYING.
Claim 2
Dependent Claim
109 words
A LIQUID ABSORBENT AND VAPOUR RELEASANT BLOCK OF COMPRESSED CELLULOSE ACETATE GRANULES FORMED BY THE METHOD OF MIXING 1360 PARTS BY WEIGHT OF CELLULOSE ACETATE GRANULES WITH FROM 30 TO 1400 PARTS BY WEIGHT OF ETHYLENE GLYCOL MONOETHYL ETHER, SAID CELLULOSE ACETATE GRANULES HAVING A MEAN MINIMUM DIMENSION OF NOT LESS THAN 0.5 MILLIMETER, ADDING FROM 20 TO 400 PARTS BY WEIGHT OF CALCIUM CARBONATE AND FURTHER MIXING, TRANSFERRING TO A PELLETING PRESS AND PRESSING INTO A BLOCK HAVING FROM 2% TO 20% POROSITY, OVEN DRYING SAID BLOCK, IMERSING SAID BLOCK IN AN OIL BASED PERFUME LIQUID, AND REMOVING SURPLUS PREFUME LIQUID FROM THE BLOCK SURFACE BY SPIN DRYING.
References Cited (Backward Citations)
US1099961A
Cited
US2072226A
Cited
US2297248A
Cited
US2460376A
Cited
US2465470A
Cited
US3055297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |