US3321407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylenediamine-tetrahydrofuran paint-stripping compositions
Assignee: Individual
•
Filing: 1964-07-02
•
Granted: 1967-05-23
•
Expires: 1984-07-02
Abstract
No abstract record available.
Inventors
- 👤 Rosenfeld Myer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:53
CPC Classifications
C; C09; C09D; C09D9/00; C09D9/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A PAINT-STRIPPING COMPOSITION CONSISTING ESSENTIALLY OF ETHYLENEDIAMINE AND TETRAHYDROFURAN IN A VOLUME RATIO IN THE RANGE OF ABOUT 30:70-70:30, RESPECTIVELY.
Claim 2
Dependent Claim
20 words
A PAINT-STRIPPING COMPOSITION CONSISTING ESSENTIALLY OF ETHYLENEDIAMINE AND TETRAHYDROFURAN IN A VOLUME RATIO IN THE RANGE OF ABOUT 30:70-70:30, RESPECTIVELY.
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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |