US3252855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling algal growth
Assignee: Wyeth Holdings LLC
•
Filing: 1965-08-10
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Granted: 1966-05-24
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Expires: 1985-08-10
Abstract
No abstract record available.
Inventors
- 👤 Wehner Donald Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:16
CPC Classifications
A; A01; A01N; A01N47/00; A01N47/40; A01N47/48; C; C12; C12N; C12N1/00; C12N1/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A METHOD OF INHIBITING THE GROWTH OF ALGAE WHICH COMPRISES CONTACTING SAID ALGAE WITH A MINOR BUT EFFECTIVE AMOUNT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF METHYLENE BISTHIOCYANATE AND MONOHALOMETHYL THIOCYANATE.
Claim 2
Independent Claim
33 words
A METHOD OF INHIBITING THE GROWTH OF ALGAE WHICH COMPRISES CONTACTING SAID ALGAE WITH A MINOR BUT EFFECTIVE AMOUNT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF METHYLENE BISTHIOCYANATE AND MONOHALOMETHYL THIOCYANATE.
References Cited (Backward Citations)
DE545740C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |