US2830045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New carboxylic acid imide and a process for the manufacture thereof
Assignee: BASF Schweiz AG
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Filing: 1957-05-16
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Granted: 1958-04-08
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Expires: 1977-05-16
Abstract
No abstract record available.
Inventors
- 👤 Leumann Ernst
- 👤 Porret Daniel
- 👤 Deflorin Alberto
- 👤 Maeder Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:10
CPC Classifications
C; C07; C07D; C07D203/00; C07D203/04; C07D203/06; C07D203/16; C07D203/18; C08; C08F; C08F20/00; C08F20/02; C08F20/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
METHACRYLIC ACID ETHYLENE IMIDE OF THE FORMULA
Claim 2
Dependent Claim
7 words
METHACRYLIC ACID ETHYLENE IMIDE OF THE FORMULA
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) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |