US3130124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Algaecide stick composition
Assignee: Chem Lab Products Inc
•
Filing: 1959-12-21
•
Granted: 1964-04-21
•
Expires: 1979-12-21
Abstract
No abstract record available.
Inventors
- 👤 Robert C Ferris
- 👤 John W Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:49
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/08; C; C09; C09D; C09D5/00; C09D5/16; Y; Y10; Y10S; Y10S424/00; Y10S424/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
AN ALGAECIDE STICK COMPOSITION COMPRISING AN ALGAECIDE TOXIC TO BLACK ALGAE MIXED IN A SOLID WAXY MATRIX HAVING THE PROPERTIES OF SLOWLY BUT COMPLETELY DISPERSING IN WATER AND OF BEING COMPATIBLE WITH THE ALGAECIDE, SAID COMPOSITION BEING ADAPTED TO BE SPREAD ON A SURFACE SUBMERGED IN WATER, THERE TO REMAIN IN CONTACT WITH THE SAID SURFACE WHILE GRADUALLY DISPERSING IN THE WATER, THE ALGAECIDE SIMULTANEOUSLY BEING RETAINED IN THE UNDISPERSED MATRIX TO PROVIDE AND HOLD A HIGH CONCENTRATION OF ALGAECIDE ADJACENT TO THE SURFACE TO KILL ALGAE THEREON, THE MATRIX SERVING TO MAINTAIN THIS HIGH CONCENTRATION ADJACENT TO SAID SURFACE WHILE A SIGNIFICANT QUANTITY OF MATRIX REMAINS IN CONTACT WITH THE SURFACE, THE MATRIX ULTIMATELY COMPLETELY DISPERSING INTO THE WATER THEREBY TO LEAVE THE SURFACE FREE OF MATRIX.
Claim 2
Dependent Claim
128 words
AN ALGAECIDE STICK COMPOSITION COMPRISING AN ALGAECIDE TOXIC TO BLACK ALGAE MIXED IN A SOLID WAXY MATRIX HAVING THE PROPERTIES OF SLOWLY BUT COMPLETELY DISPERSING IN WATER AND OF BEING COMPATIBLE WITH THE ALGAECIDE, SAID COMPOSITION BEING ADAPTED TO BE SPREAD ON A SURFACE SUBMERGED IN WATER, THERE TO REMAIN IN CONTACT WITH THE SAID SURFACE WHILE GRADUALLY DISPERSING IN THE WATER, THE ALGAECIDE SIMULTANEOUSLY BEING RETAINED IN THE UNDISPERSED MATRIX TO PROVIDE AND HOLD A HIGH CONCENTRATION OF ALGAECIDE ADJACENT TO THE SURFACE TO KILL ALGAE THEREON, THE MATRIX SERVING TO MAINTAIN THIS HIGH CONCENTRATION ADJACENT TO SAID SURFACE WHILE A SIGNIFICANT QUANTITY OF MATRIX REMAINS IN CONTACT WITH THE SURFACE, THE MATRIX ULTIMATELY COMPLETELY DISPERSING INTO THE WATER THEREBY TO LEAVE THE SURFACE FREE OF MATRIX.
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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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |