Patent US3136449A successfully refreshed from Google Patents.
US3136449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compositions for container lining
Assignee: EIDP Inc
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Filing: 1960-06-21
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Granted: 1964-06-09
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Expires: 1980-06-21
Abstract
No abstract record available.
Inventors
- 👤 Mcdowell Maurice James
- 👤 Jr Warren Guy Tyson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:57
CPC Classifications
C; C09; C09D; C09D109/00; C09D121/00; C08; C08K; C08K3/00; C08K3/02; C08K3/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
124 words
A LIQUID COATING COMPOSITION CONSISTING ESSENTIALLY OF 100 PARTS OF A DRYING OIL POLYMER OF BUTADIENE-1,3, IN SOLUTION IN A VOLATILE LIQUID ORGANIC SOLVENT THEREFOR, AND 2.5 TO 20 PARTS OF CHANNEL CARBON BLACK PIGMENT DISPERSED IN SAID SOLUTION, SAID OILY POLYMER BEING FURTHER CHARACTERIZED BY A MOLECULAR WEIGHT IN THE RANGE OF 700 TO 20,000; SAID CARBON BLACK PIGMENT BEING CHARACTERIZED BY A FIXED CARBON CONTENT IN THE RANGE OF FROM ABOUT 83% TO ABOUT 95%, AN EFFECTIVE SURFACE AREA IN THE RANGE OF FROM 90 TO ABOUT 270 SQUARE METERS PER GRAM BASED ON PARTICLE SIZE DISTRIBUTION, AND AN ACTIVE SURFACE COMPLEX OF CARBON AND OXYGEN WHICH ESSENTIALLY COMPRISES THE VOLATILE LOSS ON HEATING AT 1750*F. IN ESTABLISHING THE FIXED CARBON CONTENT.
Claim 2
Dependent Claim
124 words
A LIQUID COATING COMPOSITION CONSISTING ESSENTIALLY OF 100 PARTS OF A DRYING OIL POLYMER OF BUTADIENE-1,3, IN SOLUTION IN A VOLATILE LIQUID ORGANIC SOLVENT THEREFOR, AND 2.5 TO 20 PARTS OF CHANNEL CARBON BLACK PIGMENT DISPERSED IN SAID SOLUTION, SAID OILY POLYMER BEING FURTHER CHARACTERIZED BY A MOLECULAR WEIGHT IN THE RANGE OF 700 TO 20,000; SAID CARBON BLACK PIGMENT BEING CHARACTERIZED BY A FIXED CARBON CONTENT IN THE RANGE OF FROM ABOUT 83% TO ABOUT 95%, AN EFFECTIVE SURFACE AREA IN THE RANGE OF FROM 90 TO ABOUT 270 SQUARE METERS PER GRAM BASED ON PARTICLE SIZE DISTRIBUTION, AND AN ACTIVE SURFACE COMPLEX OF CARBON AND OXYGEN WHICH ESSENTIALLY COMPRISES THE VOLATILE LOSS ON HEATING AT 1750*F. IN ESTABLISHING THE FIXED CARBON CONTENT.
Claim 3
Dependent Claim
60 words
AN IMPROVED METAL CONTAINER FOR HERMITICALLY PACKAGING A POTABLE AQUEOUS LIQUID CONSISTING OF A TUBULAR METAL BODY PORTION AND A BOTTOM PORTION, SAID BODY PORTION BEING ADAPTED TO RECEIVE A TOP CLOSURE FOR THE PURPOSE OF HERMETICALLY SEALING SAID CONTAINER, THE INTERIOR SURFACE OF SAID CONTAINER HAVING THEREON A PROTECTIVE THIN CURED POLYMERIC COATING OF THE COMPOSITION OF CLAIM 1.
References Cited (Backward Citations)
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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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |