US3004002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Homopolymers of 1,3 bis-(hydroxymethyl) 2-imidazolidones or imidazolithiones
Assignee: Wyeth Holdings LLC
•
Filing: 1958-05-26
•
Granted: 1961-10-10
•
Expires: 1978-05-26
Abstract
No abstract record available.
Inventors
- 👤 Kaplan Earl
- 👤 Joseph C Morath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:37
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A HOMOPOLYMER REPRESENTED BY THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
7 words
A HOMOPOLYMER REPRESENTED BY THE STRUCTURAL FORMULA:
References Cited (Backward Citations)
US1986067A
Cited
US2373136A
Cited
US2436311A
Cited
US2613210A
Cited
US2661312A
Cited
US2755198A
Cited
US2777857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |