US3205052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solder flux for a can body
Assignee: Primerica Inc
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Filing: 1963-12-23
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Granted: 1965-09-07
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Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Downing Denis Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:07
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; B23K35/3615; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
80 words
AN ESSENTIALLY ANHYDROUS FILM-FORMING AND SOFT SOLDER FLUXING COMPOSITION COMPRISING: A ROSIN; A FATTY ACID FREE OF CONJUGATED UNSATURATION AND HAVING 12 TO 22 CARBON ATOMS; MORPHOLINE HYDROCHLORIDE; THE REACTION PRODUCT OF (A) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF HCHO, N,N''-DIMETHOXYMETHYL - N,N'' -ETHYLENEUREA AND N,N''-BISMETHOXYMETHYLURON, AND (B) AN INTERPOLYMER OF AN ACRYLAMIDE AND AT LEAST ONE MONOMER HAVING A VINYLIDENE GROUP; AND A VOLATILE ORGANIC SOLVENT FOR SAID ROSIN, SAID ACID, SAID HYDROCHLORIDE AND SID REACTION PRODUCT.
Claim 2
Dependent Claim
80 words
AN ESSENTIALLY ANHYDROUS FILM-FORMING AND SOFT SOLDER FLUXING COMPOSITION COMPRISING: A ROSIN; A FATTY ACID FREE OF CONJUGATED UNSATURATION AND HAVING 12 TO 22 CARBON ATOMS; MORPHOLINE HYDROCHLORIDE; THE REACTION PRODUCT OF (A) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF HCHO, N,N''-DIMETHOXYMETHYL - N,N'' -ETHYLENEUREA AND N,N''-BISMETHOXYMETHYLURON, AND (B) AN INTERPOLYMER OF AN ACRYLAMIDE AND AT LEAST ONE MONOMER HAVING A VINYLIDENE GROUP; AND A VOLATILE ORGANIC SOLVENT FOR SAID ROSIN, SAID ACID, SAID HYDROCHLORIDE AND SID REACTION PRODUCT.
Claim 3
Dependent Claim
54 words
IN A TUBULAR SHEET METAL CAN BODY HAVING A LONGITUDINALLY EXTENDING SIDE SEAM COMPRISING A PLURALITY OF LAYERS OF METAL BONDED TOGETHER WITH A SOFT SOLDER, THE IMPROVEMENT COMPRISING: A SOLID PROTECTIVE FILM ON THE INTERIOR SURFACE OF SAID SIDE SEAM, SAID FILM BEING THE THERMAL REACTION PRODUCT OF HE COMPOSITION OF CLAIM 1.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |