Patent US3134810A successfully refreshed from Google Patents.
US3134810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-(3-halopropionamidomethyl) acrylamides
Assignee: Wyeth Holdings LLC
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Filing: 1961-11-06
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Granted: 1964-05-26
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Expires: 1981-11-06
Abstract
No abstract record available.
Inventors
- 👤 Andrew S Tomcufcik
- 👤 Stuart D Willson
- 👤 Adolph W Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:01
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
N-(3-HALOPROPIONAMIDOMETHYL)ACRYLAMIDE HAVING THE FORMULA:
Claim 2
Dependent Claim
4 words
N-(3-HALOPROPIONAMIDOMETHYL)ACRYLAMIDE HAVING THE FORMULA:
References Cited (Backward Citations)
US2576501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |