Patent US2737465A successfully refreshed from Google Patents.
US2737465A
Expired / Lapsed
US
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Synthetic resin enamel stripping compositions
Assignee: RCA Corp
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Filing: 1948-05-28
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Granted: 1956-03-06
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Expires: 1968-05-28
Abstract
No abstract record available.
Inventors
- 👤 Pessel Leopold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:26
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/12; H02G1/1287; C; C09; C09D; C09D9/00; C09D9/005
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
56 words
A COMPOSITION FOR SOFTENING SYNTHETIC RESINOUS COATINGS CONSISTING ESSENTIALLY OF ABOUT 30 TO ABOUT 98 VOLUME PER CENT PENTANEDIONE 2,4, ABOUT 2 TO ABOUT 5 VOLUME PER CENT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF FORMIC ACID, FORMALDEHYDE, FORMAMIDE AND ESTERS OF FORMIC ACID, AND WHICH CONTAINS UP TO 68 VOLUME PER CENT WATER.
Claim 2
Dependent Claim
56 words
A COMPOSITION FOR SOFTENING SYNTHETIC RESINOUS COATINGS CONSISTING ESSENTIALLY OF ABOUT 30 TO ABOUT 98 VOLUME PER CENT PENTANEDIONE 2,4, ABOUT 2 TO ABOUT 5 VOLUME PER CENT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF FORMIC ACID, FORMALDEHYDE, FORMAMIDE AND ESTERS OF FORMIC ACID, AND WHICH CONTAINS UP TO 68 VOLUME PER CENT WATER.
Claim 3
Independent Claim
50 words
A METHOD OF SOFTENING A SYNTHETIC RESINOUS COATING COMPRISING SUBJECTING SAID COATING TO A COMPOSITION CONSISTING ESSENTIALLY OF PENTANEDIONE 2,4 AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF FORMIC ACID, FORMALDEHYDE, FORMAMIDE AND ESTERS OF FORMIC ACID, SAID COMPOSITION BEING MAINTAINED AT A TEMPERATURE OF 150* TO 175* F.
Claim 4
Independent Claim
50 words
A METHOD OF SOFTENING A SYNTHETIC RESINOUS COATING COMPRISING SUBJECTING SAID COATING TO A COMPOSITION CONSISTING ESSENTIALLY OF PENTANEDIONE 2,4 AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF FORMIC ACID, FORMALDEHYDE, FORMAMIDE AND ESTERS OF FORMIC ACID, SAID COMPOSITION BEING MAINTAINED AT A TEMPERATURE OF 150* TO 175* F.
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) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |