Patent US3087965A successfully refreshed from Google Patents.
US3087965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of nu-alkoxymethyl substituted amides
Assignee: PPG Industries Inc
•
Filing: 1960-12-02
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Granted: 1963-04-30
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Expires: 1980-12-02
Abstract
No abstract record available.
Inventors
- 👤 Dowbenko Rostyslaw
- 👤 Roger M Christenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:04
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A METHOD OF PREPARING COMPOUNDS OF THE FORMULA
Claim 2
Independent Claim
8 words
A METHOD OF PREPARING COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
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Cited
US2361185A
Cited
US2523934A
Cited
US2576501A
Cited
US2760977A
Cited
US2810713A
Cited
US2927942A
Cited
US2999881A
Cited
US2993903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |