US4678512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine coating compositions and method
Assignee: Individual
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Filing: 1985-10-15
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Granted: 1987-07-07
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Expires: 2005-10-15
Abstract
Abstract Marine coating for inhibiting the growth of marine life on surfaces in contact with seawater comprising a coating material having dispersed therein an effective amount of particles of a polycyclic naphthacenecarboxamide, and/or other active agents. A preferred agent is tetracycline. The principal use of the composition of this invention is to coat the hulls of boats and ships and other surfaces contacted by seawater.
Inventors
- 👤 Ralph R. Grams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:00
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/16; C09D5/1606; C09D5/1612; C09D5/1625
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
53 words
An antifouling coating material for use on surfaces or objects subjected to seawater or fresh water, said coating material comprising a marine paint including a vehicle, a solvent and a pigment, said marine paint also having dispersed therein at least about 250 mg of polycyclic naphthacene carboxamide particles per quart of coating material.
Claim 2
Dependent Claim
53 words
An antifouling coating material for use on surfaces or objects subjected to seawater or fresh water, said coating material comprising a marine paint including a vehicle, a solvent and a pigment, said marine paint also having dispersed therein at least about 250 mg of polycyclic naphthacene carboxamide particles per quart of coating material.
Claim 3
Dependent Claim
13 words
The coating material of claim 1 wherein said particles are leachable by seawater.
Claim 4
Dependent Claim
11 words
The coating material of claim 1 wherein said particles are tetracycline.
Claim 5
Dependent Claim
17 words
The coating material of claim 1 wherein said particles are less than about 0.005 inch in diameter.
Claim 6
Dependent Claim
12 words
The coating material of claim 4 wherein said polycyclic napthacenecarboxamide is tetracycline.
Claim 7
Dependent Claim
35 words
An antifouling paint composition comprising paint including a vehicle, a solvent and a pigment, said paint having dispersed therein at least 250 mg of tetracycline particles having a diameter of less than about 0.005 inch.
Claim 8
Dependent Claim
35 words
An antifouling paint composition comprising paint including a vehicle, a solvent and a pigment, said paint having dispersed therein at least 250 mg of tetracycline particles having a diameter of less than about 0.005 inch.
Claim 9
Dependent Claim
17 words
The antifouling paint composition of claim 6 having dispersed therein about 500 mg. of said tetracycline particles.
Claim 10
Dependent Claim
13 words
The antifouling paint composition of claim 6 wherein said particles are tetracycline hydrochloride.
Claim 11
Dependent Claim
15 words
The antifouling paint composition of claim 6 wherein said paint is an oil-based paint composition.
Claim 12
Dependent Claim
24 words
The antifouling coating material of claim 1 wherein the amount of said polycyclic naphthacene carboxamide particles is about 4 to 8 grams per quart.
Claim 13
Dependent Claim
64 words
An antifouling coating material for use on surfaces or objects subjected to seawater or fresh water, said coating material comprising a marine paint including a vehicle, a solvent and a pigment, said paint also having dispersed therein an effective amount of particles of a substance selected from the group consisting of tetracycline, carbenicillin disodium, ampicillin trihydrate, cefoperazone sodium, cefoperazone dihydrate, doxycycline hyclate and carbinicillin.
Claim 14
Dependent Claim
64 words
An antifouling coating material for use on surfaces or objects subjected to seawater or fresh water, said coating material comprising a marine paint including a vehicle, a solvent and a pigment, said paint also having dispersed therein an effective amount of particles of a substance selected from the group consisting of tetracycline, carbenicillin disodium, ampicillin trihydrate, cefoperazone sodium, cefoperazone dihydrate, doxycycline hyclate and carbinicillin.
Claim 15
Dependent Claim
22 words
The coating of claim 11 wherein said effective amount ranges from 250 mg. to 8 grams of particles per quart of coating.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-06 | 1991-01-05 | 1991-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-06 | 1995-01-05 | 1995-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-06 | 1999-01-05 | 1999-07-07 | $7700.00 | Window Closed / Lapsed |