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US3280118A
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N-(7-2'-thienylacetamidoceph-3-em-3-ylmethyl)-pyridinium-4-carboxylate salts and process
Assignee: Glaxo Laboratories Ltd
•
Filing: 1964-11-04
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Granted: 1966-10-18
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Expires: 1984-11-04
Abstract
No abstract record available.
Inventors
- 👤 Eardley Stephen
- 👤 Stocker Gabrielle
- 👤 Long Alan Gibson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:04
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/26; B41J11/32; A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/54; A61K31/542; A61K31/545; B41L; B41L5/00; B41L5/04; B41L5/06; Y; Y10; Y10T; Y10T403/00; Y10T403/59; Y10T403/599; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
A SALT OF THE CATION:
Claim 2
Dependent Claim
5 words
A SALT OF THE CATION:
Claim 3
Dependent Claim
16 words
A PROCESS FOR THE PURIFICATION OF A CRUDE AQUEOUS SOLUTION OF A BETAINE OF THE FORMULA:
Claim 4
Dependent Claim
16 words
A PROCESS FOR THE PURIFICATION OF A CRUDE AQUEOUS SOLUTION OF A BETAINE OF THE FORMULA:
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |