US3272899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing a solid rinse block
Assignee: Calgon Corp
•
Filing: 1964-04-03
•
Granted: 1966-09-13
•
Expires: 1984-04-03
Abstract
No abstract record available.
Inventors
- 👤 Diamond Jack
- 👤 Wayne M Gauntt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:46
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/44; A47L15/4436; C; C02; C02F; C02F5/00; C02F5/08; C02F5/10; C02F5/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
48 words
METHOD OF MAKING A SOLID RINSE AND BLOCK WHICH WILL DISOLVE GRADUALLY AND UNIFORMLY COMPRISING: (A) MELTING TOGETHER AT LEAST ONE SOLID NONIONIC WETTING AGENT AND, IN AN AMOUNT ABOUT 3% TO ABOUT 20% OF THE TOTAL WEIGHT OF THE MELT, AN ALKYL SUBSTITUTED AMIDE HAVING THE FORMULA
Claim 2
Dependent Claim
48 words
METHOD OF MAKING A SOLID RINSE AND BLOCK WHICH WILL DISOLVE GRADUALLY AND UNIFORMLY COMPRISING: (A) MELTING TOGETHER AT LEAST ONE SOLID NONIONIC WETTING AGENT AND, IN AN AMOUNT ABOUT 3% TO ABOUT 20% OF THE TOTAL WEIGHT OF THE MELT, AN ALKYL SUBSTITUTED AMIDE HAVING THE FORMULA
Claim 3
Dependent Claim
23 words
THE METHOD OF CLAIM 1 INCLUDING THE STEPS OF DIVIDING THE SOLIDIFIED MASS INTO PARTICLES, AND PRESSING SAID PARTICLES INTO A DESIRED SHAPE.
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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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |