Patent US2507984A successfully refreshed from Google Patents.
US2507984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paint remover composition
Assignee: Wyandotte Chemicals Corp
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Filing: 1945-11-01
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Granted: 1950-05-16
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Expires: 1965-11-01
Abstract
No abstract record available.
Inventors
- 👤 Lester E Kuentzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:06
CPC Classifications
C; C09; C09D; C09D9/00; C09D9/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PAINT REMOVER COMPOSITION CONSISTING ESSENTIALLY OF METHYLENE CHLORIDE AND 0.1 TO 50% BY WEIGHT ANHYDROUS BASIS, OF AN ACID SELECTED FROM THE GROUP CONSISTING OF FORMIC, ACETIC, PROPIONIC, SALICYLIC, BUTYRIC, CARBOLIC, BENZOIC AND EINNAMIC ACIDS; AND WATER IN THE AMOUNT OF 0.01 TO 6.0% BY WEIGHT ON THE BASIS OF THE TOTAL COMPOSITION.
Claim 2
Dependent Claim
54 words
A PAINT REMOVER COMPOSITION CONSISTING ESSENTIALLY OF METHYLENE CHLORIDE AND 0.1 TO 50% BY WEIGHT ANHYDROUS BASIS, OF AN ACID SELECTED FROM THE GROUP CONSISTING OF FORMIC, ACETIC, PROPIONIC, SALICYLIC, BUTYRIC, CARBOLIC, BENZOIC AND EINNAMIC ACIDS; AND WATER IN THE AMOUNT OF 0.01 TO 6.0% BY WEIGHT ON THE BASIS OF THE TOTAL COMPOSITION.
References Cited (Backward Citations)
US1095270A
Cited
US1147849A
Cited
US1147850A
Cited
US1918224A
Cited
GB485857A
Cited
US2327701A
Cited
US2418138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |