US2834756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing amine-aldehyde resinous compositions and product obtained
Assignee: Wyeth Holdings LLC
•
Filing: 1954-06-10
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Granted: 1958-05-13
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Expires: 1974-06-10
Abstract
No abstract record available.
Inventors
- 👤 Suen Tzeng Jiueq
- 👤 Jen Yun
- 👤 Sewell T Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:45
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A PROCESS FOR PREPARING A RESINOUS COMPOSITION WHICH COMPRISES REACTING DIHALOALKANE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
15 words
A PROCESS FOR PREPARING A RESINOUS COMPOSITION WHICH COMPRISES REACTING DIHALOALKANE OF THE GENERAL FORMULA
References Cited (Backward Citations)
GB474601A
Cited
US2616874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |