US4409141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peptides for assaying human parathyroid hormone
Assignee: Asahi Kasei Corp
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Filing: 1981-12-29
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Granted: 1983-10-11
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Expires: 2001-12-29
Abstract
Abstract A peptide of the formula R-Lys-Lys-Glu-Asp-Asn-Val-Leu-Val-Glu-Ser-His-Glu-Lys-Ser-Leu-Gly-Glu- Ala-Asp-Lys-Ala-Asp-Val-Asp-Val-Leu-Thr-Lys-Ala-Lys-Ser-Gln-Oh wherein R is H, H-Tyr- or R1-Pro-Arg-, R1 is H, H-Tyr- or R2-Ala-Gly-Ser-Gln-Arg-, and R2
Inventors
- 👤 Toshiharu Noda
- 👤 Kaoru Morita
- 👤 Sadami Kobari
- 👤 Nobuaki Nakagawa
- 👤 Susumu Watanabe
- 👤 Shigeo Katsuragi
- 👤 Kunio Ohyama
- 👤 Masahiko Taniuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:54
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/435; C07K14/575; C07K14/635; C07K5/00; C07K5/04; C07K5/06; C07K5/06008; C07K5/06017; C07K5/06034; C07K5/06052; C07K5/0606; C07K5/06069; C07K5/06086; A; A61; A61K; A61K38/00; Y; Y10; Y10S; Y10S530/00; Y10S530/806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A peptide of the formula R--Lys--Lys--Glu--Asp--Asn--Val--Leu--Val--Glu--Ser--His--Glu--Lys--Ser--Leu--Gly--Glu--Ala--Asp--Lys--Ala--Asp--Val--Asp--Val--Leu--Thr--Lys--Ala--Lys--Ser--Gln--Oh [I] wherein R is H, H--Tyr-- or R 1 --Pro--Arg--, R 1 is H, H--Tyr-- or R 2 --Ala--Gly--Ser--Gln--Arg--, and R 2 is H, H--Cys-- or H--Tyr--, or a salt thereof.
Claim 2
Dependent Claim
37 words
A peptide of the formula R--Lys--Lys--Glu--Asp--Asn--Val--Leu--Val--Glu--Ser--His--Glu--Lys--Ser--Leu--Gly--Glu--Ala--Asp--Lys--Ala--Asp--Val--Asp--Val--Leu--Thr--Lys--Ala--Lys--Ser--Gln--Oh [I] wherein R is H, H--Tyr-- or R 1 --Pro--Arg--, R 1 is H, H--Tyr-- or R 2 --Ala--Gly--Ser--Gln--Arg--, and R 2 is H, H--Cys-- or H--Tyr--, or a salt thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |