US3785855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for coating steel
Assignee: Individual
•
Filing: 1972-01-14
•
Granted: 1974-01-15
•
Expires: 1992-01-14
Abstract
Abstract WHERE R'' is hydrogen, methyl or ethyl and R is methyl, ethyl, or hydroxymethyl, heating to effect further polymerization, applying thereto a solution or a dispersion of a vinyl halide polymer, copolymer, or terpolymer and heating to effect evaporation of the solvent or coalescence of the dispersion. A process for coating steel by applying thereto a monomer or partial polymer of an amide, represented by the formula
Inventors
- 👤 D Sausaman
- 👤 R Purcell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:26
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/14; B05D7/16; C; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
16 words
The process of claim 1 wherein R of said amide is hydroxymethyl and R'' is methyl.
Claim 2
Dependent Claim
14 words
The process of claim 1 wherein R of said amide is methyl or ethyl.
Claim 3
Dependent Claim
11 words
The process of claim 3 wherein R'' is methyl or ethyl.
Claim 4
Dependent Claim
9 words
The process of claim 3 wherein R'' is hydrogen.
Claim 5
Dependent Claim
16 words
The process of claim 1 wherein R of said amide is hydroxymethyl and R'' is ethyl.
Claim 6
Dependent Claim
16 words
The process of claim 1 wherein R of said amide is hydroxymethyl and R'' is hydrogen.
Claim 7
Dependent Claim
11 words
The process of claim 1 wherein said film is said alkanolamide.
Claim 8
Dependent Claim
15 words
The process of claim 1 wherein said film is said partial polymer of said alkanolamide.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |